Just running publics imo is not a good end game strategy....it needs something substantial. Plus bungie has not shown the ability to make changes that are needed very fast at all. Lost sectors def should be used more, and maybe adventures.
Well atleast there is actually a roadmap with content on it this time around. We know what September is bringing. Faction Rally will probably some kind of scoring event with reward for high scores or good times, something of the sort, and Iron Banner in October will the PvP event for that. If November brings something like Heroic Strikes back into the game with Strike loot tables (one can dream) and December is DLC, that's looking pretty fresh to me.