Just because this is very important.
DO NOT ask the devs when the DLCs will be available on PS4 and old gen. They cannot tell you without risking their jobs. EA and Microsoft has a timed contract (attached to their Early Access contract) that disallows them from talking about it so that PS4 players are forced to wait and it “supposedly” benefits Microsoft (however, it actually doesn’t but both console developers love throwing cheap tricks back and forth).
If you want to know or express your thoughts on this exclusivity, go talk to someone higher up than Bioware, they are only doing their jobs.