We won't be seeing flying cars anytime soon, but there are plenty of other travel trends to keep an eye on, including the first bunk beds for economy passengers on long-haul flights. Here's everything you need to know:

In June, Air New Zealand announced some very welcome news for anyone who has ever tried to get some sleep in a cramped cabin: the airline is installing lie-flat sleeping pods in eight Boeing 787-9 Dreamliners that will be delivered by the end of 2024. Dubbed "Skynests," these pods will just be available for passengers in regular and premium economy, for an extra cost. The pods will be stacked on top of each other, and come with a mattress, sheets, USB charging capability, "ventilation outlets," and a privacy curtain; the flight crew will clean each pod between bookings. Passengers can book one four-hour session per flight, but there's no funny business allowed — just one person can be in a pod at a time.

Air New Zealand says this will be the first-of-its-kind experience in economy, and they are still working out the cost. "New Zealand's location puts us in a unique position to lead on the ultra-long-haul travel experience," Air New Zealand CEO Greg Foran said. "We have zeroed in on sleep, comfort, and wellness because we know how important it is for our customers to arrive well-rested." These pods will definitely come in handy on the Auckland-New York City route, launching this fall — the flight will take more than 17 hours.

There are new lines in the planning stages or under construction in France, Germany, Spain, India, and China, where CNN reports the high-speed network will reach more than 31,000 miles by 2025. In England, work has begun on the High Speed 2 (HS2) railway line, which will one day be used by trains capable of reaching 250 mph. It's being built in two stages, and it's expected that the first segment between London and Birmingham will be completed by 2031 (the second segment between Midlands and Manchester and Leeds likely won't be finished until 2040).

This project has not been without controversy; supporters say the high-speed railway is creating good jobs and will make it easier for more passengers to travel efficiently, while critics point out it is over budget by several billion pounds and the tracks cut through wildlife habitat.

In Japan, the government is investing $72 billion in the Chuo Shinkansen project — a 178-mile line with tracks that use magnetic levitation (maglev). This is the culmination of more than four decades of maglev research and development, CNN reports, and the line will link Tokyo and Nagoya in 40 minutes. The plan is to then extend the line to Osaka, with passengers able to travel 311 miles in 67 minutes. Construction began in 2014, and the goal was to have it finished by 2027, but because there have been some issues getting permission to build one section of the line, there is no set launch date.

Regenerative travel is becoming more popular as people see the effects of climate change on the planet. Where sustainable travel is about leaving a place as it is, regenerative travel aims to make that place better than it was when you arrived. Amanda Ho is founder and CEO of Regenerative Travel, a community of independent boutique hotels. She told Fodor's that "the pandemic has required us to ask, 'Why do we travel?' and gives us an opportunity to change 'how we travel.' We must repair and replenish our relationships with the places we travel. As an industry, we have a responsibility to create the change we want to see for the future of our planet."

That means for a tourist, they might get involved with a local tribe, nonprofit organization, or community center and commit to a project that is educational and hands-on — for example, going to a forest and learning about fire prevention while building trails, or visiting the Pacific Northwest to help restore salmon habitat. On the tourism industry side, promoters are planning these excursions and also making an effort to point tourists in multiple directions so they aren't overcrowding one place, Fodor's said, adding, "the intention is to better the destination, experience, and exchange of good for both the community visited and the travelers."

If all you need is a laptop and internet connection, consider an extended trip to a place you've been to before and wished you'd had more time to explore, or pick a destination you've always been curious about, and book a long-term rental there. You'll be able to sight-see and go on local adventures when you're not at work, and get a feel of what it's like to actually live in this spot.

For those who prefer variety and are drawn to the ocean, try a grand sea voyage — they aren't just for people who are retired. "Younger people who can work from anywhere are in the game," cruise expert Carolyn Spencer Brown told Town & Country. Royal Caribbean's Ultimate World Cruise sets sail on Dec. 10, 2023, and it's a doozy — guests will spend 274 nights on the Serenade of the Seas, visiting more than 60 countries. Stops include Copacabana Beach in Brazil, the Great Pyramid of Giza in Egypt, and the Colosseum in Rome.

Cruise ships are always looking for ways to attract guests, and Regent Seven Seas is hoping to lure in travelers with its Regent Suite, available to book on the Splendor and Explorer ships. These are the largest luxury line suites, and are the definition of extravagant — and at 4,443 square feet, they're also probably bigger than your house. Each lavish suite has a spa with sauna, steam room, and jacuzzi; fully-stocked bar; custom Steinway piano; original lithographs by Pablo Picasso; choice of bed linens and pillow styles; and massive terrace with a hot tub, among other perks (like unlimited in-suite spa treatments and the services of a private butler).

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