I don't think it'll be Danny's call either way. He's never shown any indication of being stubborn/demanding a certain role. He had no problem deferring to David West from day one last season, he's been instrumental in the growth of guys like Roy and Paul, and I'm sure he'll accept whatever role the coaches determine he fits best in.
Honestly, I couldn't care less. Lance has seemingly flipped a switch and realizes he's unstoppable in the open court. The team has started going up-tempo while still feeding the post, and Lance will be successful in that system whether its Hill/PG/West/Roy or DJ/Tyler/Ian/Young.
Danny will play 30ish mpg (if he's healthy) and Lance will likely get 6th man minutes. Whichever is out there at the tip is irrelevant (In my opinion, of course.)