just personall opinion and thinking :
MMR SYSTEM:
we all know its harder to grind rating in blackrock compared to icecrown , in blackrock you can have 100 wins and 100 lose your rating will still be 1500 , you need positif rating in order to advance, while in icecrown with that score you could be at least 2k -2.2k easy which is not fair for both players who are learning new classes/ or simply new to pvp/wotlk and for average players as well
am not sur how butfixing this will prevent good players from facing new players who are still trying to gear up and will get rid of " 2k rating rivals/glads " which is pretty lame a glad title should be given to higher rates we need to make top teams reach 3k rating again
3V3 DEADD :
from my point of view solo q was never a real 3v3 bracket everything is random ( the people you play with , the comps , the mmr diference...etc ) + you can't even buy T2 wep out of it , but as long as solo q exist real 3v3 wont be really " alive " because why bother look for mates for 2 hours while you can join on your own instantly , also solo q is full of noobies who can't find real mates thats why you cant compare solo q rating to 3v3 rating the two are very different so stop trying to make solo q seem like its legit 3v3 it will never be
what would make 3v3 alive again is either removing solo q entirely which would be a waste of a system you worked hard on ! or making solo q rating only usable to buy tmogs and trinkets or something like that , that would make players at least consider playing either 2v2 or 3v3,
SHADOWMOURNE :
if blackrock players are gonna face all the shadowmournes of icecrown / lordaeran then making it avialable to obtain ingame in blackrock as well is a must , yes blackrock players are way superior and don't need it but dont forget that almost every top team in icecrown are blackrock players so it wouldnt be fair to everyone