I for one don't want a reboot. I like the world-building that has taken place in the movieverse to date, particularly what was hinted at in the last two movies, and it would be a shame to ignore it all for a reboot just because the last one performed below expectations.

I think the weak point to date has been the writing - since each movie is written one at a time, there's no overarching direction, and each movie just builds on the last. This is how franchises have traditionally been written, but the Marvel model has popularised the idea of planning out arcs for several movies. It's something that Paramount and Hasbro have tried to adopt, since Steven Spielberg and Akiva Goldsman assembled a writers' room in 2015 to plan out the next few movies.

They're certainly not out of material to use, since Michael Bay said that the writers' room had come up with 14 stories. Perhaps some of this work is what Lorenzo di Bonaventura was talking about in the section where he talks about the different concepts that have come up.