Doom in his own solo? Maybe, but he must be introduced as a villain first.

Would be awesome. Especially if it was him Vs fantastic 4 in his perspective

Yes

Would be cool but be ruined by SJW shit probably.

I wouldn't mind seeing one but don't know if they could do him justice.

If done correctly I wouldn’t mind it, would be nice to see a super villain get his own movie but Doom should definitely be one of the big bads in future movies.

No because Disney always ruins good characters.

No. He should be introduced as the main villain of the Fantastic Four movie.

No because we already have 3 movies with him.

Sure!

He should get a whole arc. Like Thanos.

Secret Wars/Battleworld thing where Disney can snag any any of the ones they have access to, similar to how DC/WB is doing Crisis.

He should have an entire arc.

That's not a need. Doctor Doom is one of the most iconic and one of the main villains in marvel, that's inevitable.