nah i think he. will either ally himself with shanks or just go chilling with them because he will get bored of marines chasing him and since shs vs rhp would very important for lufffy and ussop why not add zoro into the mix?
Well, i think Mihawk might be a Revolutionary Army.
1. In the earlier story, Mihawk already meet Luffy and Zoro. That could be an indication if Dragon want Mihawk to meet them after the Logue Town incident.
2. Why Kuma sent Zoro to Rusukaina island which is Mihawk's base.
3. Its still odd if you think Sabo is the 2nd strongest even before he ate Mera - Mera No Mi. So Dragon which is "The Most Wanted Man" had Sabo as the 2nd strongest person in Revolutionary Army and having a 600 mil bounty. (But now he ate Mera-Mera No Mi, so his bounty might raised up to 1 Bil)
4. With an assumption if Dragon might had the highest bounty in One Piece, having Mihawk as a part of Revolutionary Army will fill in that huge gap between Dragon and the 2nd strongest person in Revolutionary Army.