With the changes to PvP gear, namely with them having two secondary stats on them, Conquest gear is superior to loots from heroics, craftable 476 loot, and all LFR loot. In other words, you are forcing players who wish to have the best possible gear for PvE raiding into arenas and rated battlegrounds, which is exactly what Vaneras said you would not do ("Players who enjoy PvE shouldn’t feel forced to PvP to get the best gear, and vice versa.")
I really do not want to, or have the time to, farm Conquest points for raiding, yet players that also do arena and/or RBGs (or even grinding normal BGs) have a disproportionate advantage over players that do not in PvE, which is surely not your intention.
See here for examples of players who have started to farm Conquest points because it is the best gear you can get until you have an equivalent piece of normal mode raid gear:
I know you want there to be a crossover to encourage PvPers to PvE and vice versa. However, having BIS PvP gear available and farmable so early on, with utility in both PvP and PvE, is not fair on PvEers, who have to grind raids to get better gear.