the pot they are in will make it to next year ...assuming those pots are fast draining ... if you want to repot just to get them out of the paper pots
flowers form at stem tips, and adenium flowering can go on for well over a month ...sometimes longer ...
flower buds "line up" and flower one after the other on the same stem tip - usually many stem tips with flowers can cover a plant
best to do all maintenance, including repotting early spring ....this gives the plants all summer to recover
