Quoted from Mudflaps:
The more I play Kiss, the more I enjoy it. The code can absolutely improve, but Jesus Christ, the game has 4 multiballs, a wizard mode, hurry-ups, super scoring, etc. Combined with some difficult shots, it's still a ton of fun. Kiss plays kind of like a jacked SS game, but I think we've come to expect more with modern games. Kiss isn't abandoned or forgotten... It's just taking longer than anticipated for a killer update.
Agreed. Not saying Kiss does not deserve an update, but my feeling is that the effort should be put first on WWE. Sales are probably not in the same league but providing a major update for WWE would send a very positive positive signal for future sales - Sten does not forget its buyers even for pins that do not sell well.