Honestly, with the current era of DB being more about fanservice than providing original characters (in the grand scheme of things), I think it'll only be a matter of time for Cell after this movie/arc, if his fans remain or become loud enough like Broly fans had been (for him to become canon) for years, that is.
Of course, it could also end up being a similar situation where only Vegeta fans were loud enough out of the Z-fighters, while fans of Gohan and the like were more divided, which am guessing is why we got what we got with the ToP and such.
Gero loves all his babies, and Buu only even got a following thanks to Hercule befriending him. Funny there was no spots excuse when it came to having Cell in Z filler or in GT, but his little return arc in DBFZ I can live with at least.
It's a shame the Cell-spots are evidently impossible for DB artists to recreate, because I would have liked to see him resurrected at some point -- definitely before Broly, ffs.
But I digress...
"The Grand Admiral was smart and subtle, but never used his brilliance to show up or humiliate anyone.
He demanded results, but never perfection, and had amazing stores of patience for those who were truly working to their fullest ability.
It was a pity Thrawn's style of leadership hadn't spread through the rest of the navy.
If that happened, he suspected, the Empire would stand forever."