If Charles gets the belt. Fuck no, that's a horrible matchup.
Chandler, maybe but we'll have to see Conor get through Dustin.
The thing is they gave Conor a tune up with Cowboy. The easiest stylistic matchup for him in the highest ranked position at LW and fights him at WW.
Great performance, it didn't tell us much on how much he's improved.
I know I'll get shit for this, but Dustin was the next easiest matchup for Conor in the top 5 and still is. Sometimes chinny, already beat him once, struggles with southpaw, struggles with counterpunchers, likes to brawl, etc.
This is why Conor and the UFC wanted that fight at UFC 257, it's the easiest fight for him in the top 5 to get him into title contention.
Dustin fucked their plans badly and showed that he's been a different fighter after the Conor Mcgregor and Micheal Johnson losses. He doesn't brawl as much, he gameplans for specific opponents and exploits their weaknesses.