User blog comment:RennaGraceCarter/Chapter 327 My Part Too - Review/@comment-7418318-20130414064845/@comment-7418318-20130414074246

Just that at least some of them eventually will return to their own time doesn't mean they can't stay in the present for some time and do epic stuff.

With timetravel it doesn't matter wether they go back right away or after a few decades. Considering that Lucy's trying to close the gate and how long it took to charge the thing the first time, it's actually more likely that they'll have no choice but to stay for a some time.

Though I suppose without all the secrecy and stealing magic in a way that noone notices, the charging is most likely going to be a lot faster.