With the takedowns of Hansa and Alphabay, I think decentralization is a must for future marketplaces. At least for them to stay up for a few years, they'll need to be completely different. Because as we currently see, the system just isn't working or either wise we wouldn't have so many exit scams and seizures.
Either way, as we go forward into the future I think a lot of marketplaces will need to use a good escrow system, multi-sig features, they'll have to stay away from FE and the users will have to be a bit more paranoid and use good OPSEC. It's important.
Links:
OpenBazaar: http://insidebitcoins.com/news/brian-hoffman-on-why-vcs-arent-scared-to-invest-in-openbazaar/33846
Reddit: https://www.reddit.com/r/DarkNetMarkets/comments/6oro4z/how_to_stop_the_take_downs_of_darknet_market/
Interesting to check out:
https://pay.reddit.com/r/DarkNetMarkets/comments/6gav2z/interest_in_crowdfunding_for_tralfamadore_a/
