With pokemon rejuvenation having high shiny odds you might want to look into shiny pokemon, prep an ultimate shiny team before the next version comes! My main suggestion is doing the type: null sidequest located south of route 3... by the entrance to Goldenleaf town, taking the time to shiny hunt the type null in the quest will be satisfying and overall worth your time.
As a side note I am a veteran when it comes to pokemon insurgence, while it is old you may want to take a look into it for the lore, it takes a unique look at everything. Plus I gotta agree with Arlonen as well, pokemon reborn should definately be something you check out as well. Im sure when the next version of rejuvenation comes out you will have even more stuff to do as well