Good post, LaLa. IMO, I don't think any big rock band should go in a totally new direction, for fear of losing former fan base or just not sounding like themselves. You just need to tweak the formula a bit, to go with the times.
I can't wait to see who INXS chooses & believe we'll get a real sense of whether INXS wants a comeback or not. I see it as follows -- if they pick . . .
J.D., they are serious about a comeback, because I truly feel J.D. is the only one who has "IT" & a lot to bring to the table. He can do their past hits JUSTICE, he has talent in writing & "sound/arrangement" to collaborate & add to INXS formula & J.D.'s stage presence & charisma is OFF THE CHARTS.
Marty, they are looking to go into a new direction & go for the grunge rockers. Marty has a huge fan base (not my preference, though) and Marty should not be willing to compromise his style & INXS shouldn't expect him to. Marty is talented & has great stage presence as well. I do not see INXS choosing Marty & would be shocked if they do, because it would be like oil & water.
Suzie, they just want to put out this one album & do a quick tour & retire. I think she would be a safe pick if INXS is happy to continue to fade away. She has a great voice & can sing the back catalog & whatever else they write for this album. She doesn't have the charisma & stage presence to be a serious front woman for a band.
MiG, likewise, they just want to put out this album, do a quick tour & "semi-retire." They can then do some local gigs in Australia here & there & make appearances. MiG just isn't right to front a rock band, he sounds best sitting at a piano, singing a soft melody.
So, in sum, J.D. is the only chance for a comeback to bring INXS back to the top. I would even go to their concert & fight survival in the mosh pit to see them with J.D.