This will probably hurt him more than help him. He's going to oversaturate himself & probably annoy most of the general public by being everywhere. It'll be interesting to see how the sales vary from week to week. I predict that he will sell extremely well with Heartbreak & then lose sales as the weeks progress.
Having a large fanbase can only get you so far which has been proved by One Direction, Ariana Grande, & even Gaga. All of them have had singles (or promo singles) that were front-loaded & sky rocketed to the top for a few hours only to plummet down the charts as the week/day progressed. (Gaga being able to stabilize more as she's taken more seriously than the teen artists.) Just my thoughts.
well good luck