I read some good points here.
Is the Seadek standard on the Deluxe and Sport?
Two engines will be nice for those on more remote trips having the backup.
I do like the seating up front, but Earfixr makes a good point about the loss of the casting deck.
I saw the jumpsuit cushions are not covered and lose a backrest. That's kind of lame. I see a trip hazard and a uncomfortable riding position.
Appears to have also lost the wet locker or casting net holder...or are they combined in one? Seems unlikely since the water would fill up your 5 gallon bucket unless separated. The diving ladder is in the middle of the stern deck now so it did not have to be off-set for the bucket.
The coaming, as previously stated, appears to have less padding.
More room to walk around the tower is nice.
Seems speakers are a little better positioned.
Cup holders if you need them. Drainage?
Also to note:
Yamaha had to change the mounting of the nav lights on the 2017 to comply with US CG regs. It looks like they went back to the old design here. Not mounted on the bow. Wonder why?
Also, where are the cleats? I only see one on the middle of the hull. Gotta tie up somewhere. Is this perhaps the prototype boat? Let's see!