way i see it, the end game is suffering from a lack of non tier related drops. the only non weapon ,non tier drops are the "energized" drops which are flat out copies of regular tier gear (even in stats in most cases)
to really reward 16 man, make more standalone gear and items available. having One piece of gear or 2 out way a rakata is fine as long as you work for it. it makes us raiders actually think about what to wear
in the same idea, BW needs to make better relics. right now most guildies agree that using a matrix cube is usually better. (+60 something to your main stat at all time is amazing) not all relics should be 'push to use' allow some to give us proc effects or even just interesting ones like the "Eye of Shadow" that priests could gain in Molten Core that led them to a epic questline.
we need some more loot, BW. Some better then tier, some more interesting, but we as raiders need rewards from 16 man, and what i suggest is , imo, the perfect solution