Celt: the same with Japanese UU unit is not familiar they are under rate when player play why increase their cost?
Portugal: organ gun too they are got nerf at last updated now - 10 HP too it perhaps too weak
China, 
increase cost upgrade 300 res it seem too much + gold crown too. Any one see it like me?
I think they should increase the speed to be closer to elite eagle runner, and slightly decrease the damage. Increasing the food cost is fine.
With 50 hp and 2 MA they may die in one mangonel shot, which is good (40 + 12 damage).
They increased from 807f 807g to 1105f 1105g (after civ discount), but they included the current imperial UT of 750w 750g.
So overall a discount, but it is probably still a nerf because we usually delay Elite for long time since it is currently too weak for its 807f 807g cost (5hp and 2 one-damage arrows delaying the attack cooldown).
I dont think it is worth complaining before seeing the effect of the other changes (new infantry and mangonel lines, lose mangonel and camel lines).