Why is level cap increased only by 5 lvls to 85 instead of 90??

[Aoe]

In previous expansions blizzard always increased level cap by 10 levels, why did they only increase it by 5 this time? I was expecting them to increase the levels cap to 90

[Turtle]

I wanted it increased to 90 as well

[Twanos]

From what I've heard it's gonna be hard to even get to 85. I think the main reason is probably to make more room for additional expasions before they hit the lvl 100 cap which they said a long time ago they don't want to go past.

[Arthas]

Whatever level they increase it theres always gonna be this guy who manages to hit the level cap on the first day