Not only have subways all but disappeared from Sterns (save Metallica Prem/LE and Ghostbusters Prem/LE) but even any sort of under-playfield trough to redirect the ball, such as behind the castle in MM, behind the ship in AFM, or the skill shot/scoop in RBION. This leads to an extreme WYSIWYG, ball-bounces-back-at-you-every-time play experience, and it's a shame IMO.
JJP's POTC and Dialed In have subways, and Hobbit has under-playfield troughs/semi-subways.