Firstly, WOZ will have all WMS generic playfield parts so there's your fix if you are looking for their feel.

Secondly, as a publically traded corporation with assets many times greater than Stern, WMS is obligated to their shareholders to bring a return on the investment. Compared to the slot machines they currently produce, pinball would be insignificant. That said, I think it is safe to say WMS will not get back into pinball. Pinball is now delegated to a scale only a proprietorship will tackle. In the high point of the 90's WMS made ~100,000 machines annually. Stern is believed
to be producing not in excess of 10,000. Combined with JJP we have a total market of not far from HALF of what TAF alone sold!

Methos- In answer to your question regarding JJP using all WMS parts;

Part of the attraction to the JJP product will be that they are using all the common parts originally designed for WMS machines. All Bally/Williams machines of the late 90's used the same generic flipper mechanisms, pop bumper mechs, slingshots, star posts, etc etc. This is all the stuff that Bay Area and Planetary have exclusive rights to manufacture and distribute. They will be the exclusive suppliers to JJP for all these non game specific parts. Hopefully this will mean that the JJP product will have a WMS "feel" to it.