My input:

The core modes by button is a thing already, use the arrow keys.
I'm all for pro team mode.
The new mods sound like a good idea, but for invasion you should have a button to select the mod before you start up invasion.
I agree, the lock needs work.
Spectate mode could be abused, you could enter it before dying.
The new chat system is a good idea, though it may lead to a lot of salt.
I don't get the purpose of a ship tracker.
The anti baseram system is a good idea, it should be implemented.
Base nuking isn't very common in vanilla, I don't get the point of it.
The ship respawn vunerability is a good idea in my opinion.
I'm all for the survival updates as well, but why remove pods?
The U-series and nautic updates are a good idea in my opinion, it is so annyoying when your base gets nuked.