BISQ succeeded what openbazaar failed but last time i used them exchange was slow and take time to load.
It's much better now than it used to be, but you still need to download software, sync and interface can be improved, so doubt it will ever be super fast. Is the atomic swaps really decentralized or is it centralized and dependent on a network such as BSC and BUSD.
and other Blockchains will use wrapped coins or real coins?
Binance chain, busd and all similar shenanigans are run like a small cartel of nodes, so it's never going to be truly decentralized, it only have dex sticker.and other Blockchains will use wrapped coins or real coins?
However, I think that you can exchange some assets with Bitcoin even if those assets are centralized, and I am saying that not as a export on atomic swaps.
Most people probably don't care if something is decentralized or not, as long as that thing works.
Maybe a Forked version like Haveno
This could be interesting and I see they released new website, but it's long road ahead. 
