Heavensward MSQ EXP/Level Gates

[Khalithar]

So we will be lv 70 in the lv 65 msq?

No. To put it in more concrete terms, let's pretend that there are four main story quests at level 61 and once you complete them, the next quest requires you to be level 62. You with me so far? My point was, those four main story quests should provide enough exp for completing them to take you from 61 to 62 by themselves.