Technology-wise, there's stuff like:
And those are just the ones I'm dimly aware of. Plenty of interesting concepts in the pipeline. I don't understand much of it on a technical level yet, but the people developing it do.
The next goal should be for the major players like goldman sachs to open up their own exchanges for bitcoin.
Ideally, no. More centralised exchanges aren't exactly a laudable goal for a decentralised ecosystem. We can do better than that. Exchanges are a relic of the "traditional" finance world. The idea of Bitcoin isn't that a custodian looks after your money for you. Literally the last thing we want to do is encourage more of that kind of behaviour. When the tech reaches its full potential, we won't need exchanges for most things anymore.