stacking so much quests was not intended, in all interviews about incursions before release devs sayed that it was designed to have only 5 quests at a time. I dont think that they will add extended q log to encourage u use abuse that was not intended.
I don’t know if you’re bad at math or just don’t quest at all, but 50 quests would definitely not take you to lvl 60 xD
Maybe 52, if all the quests are super good exp.