Someone made a thread with a similar topic a few days ago, and how they presented it was more as a bonus DLC- “Old Faces” as a reward/tribute to veteran players. The idea isn’t meant to be canon compliant, and as I said in that thread, it would leave a lot of room for meta/comedic potential.
So yeah, I’d be for it. I’m in the majority who only sticks to one character, but I still think it would be fun regardless.
Of course I’m against it from a practical standpoint. If it were to ever be made, it would have to be after everything for BL3 has been released. But from a hypothetical standpoint, it sounds potentially hilarious and fun.