A digital read out of the level should be easy to implement, and would be a must if online play is ever going to happen and be remotely meaningful.
Why is there the insistence of a shooter lane any more? It's wasted space, the ball could enter the playfield at the top (like Centaur), this would then allow the game to have a wider playable area near the bottom allowing for different designs and changing the angles - almost all games have the same/similar slingshot/inlane/outlane setup.
With Insider Connect rather than just the top 5 high scores, why not each persons own individual best score/achievements on there as well, the same way that
BoP 2 did?
My machine only has my initials on, with many guests having zero chance of getting their initials on, this would give them the opportunity to put their initials on that machine, linked to their IC account.
Less laziness in putting three pop bumpers in a triangle at the top of the playfield, although it appears this is becoming less of an issue.
Bring back the moving magnet under the playfield as per Mist on
BSD.
More lock stealing possibilities, great fun to see someone go to the effort of locking the ball only for someone else to cash in on their hard work - almost as good as plundering on JJP PotC.