On a positive note, as Trials has been confirmed going to 4v4 like the rest of the game modes, they are promising that it will even better than last time. Clearly not much to go by but this is good news for the community. Whilst we didn't play much of it (i'm really not sure why though), it was the most successful game mode they had across the entire content in Destiny.
I think with it increasing to 4, I think this will appeal to us lot some more - I never went to the Lighthouse but it always sounded a great reward to get there.
I also think the change up to divide PvP into 2 sections; Quick Play and Competitive, will clearly do significant improvements to a PvP mode that quite a few felt like it was broken since Day 1. It's a proven model that is pretty much guaranteed to work and I can see nearly all of us when we do play PvP ending up on Competitive modes for all round better games.