I hope your right, like I said this is a small observation based on the 3 newer games I had seen in the newer cabinets was all. Who knows the next big thing might be in the works and I hope so. I'm a big fan of WMS, just was disappointed in the pay out scale of the 2 games with the 80 pay lines, and the OMG Puppies was obviously a total knock off of OMG Kittens.
I'll give some examples of what I experienced.
Snow Panther and Ruby Star:
80 lines of play for a 40 cent bet
6 of a kind woman (top paying symbol) on a 4 pay lines, paid out $12.00, you read that right $12.00
Then the two "progressive" top pay out were capped at $50.00 for the minor and $100.00 for the major. Granted that means that these will hit more often than before, but at the same time will also result in "less" excitement in mind for hitting a major progressive. They should have at least offered a level about the major, with some huge pay out compared to just double what the minor was.
Hot Hot Penny 2:
Again it would seem as if the pay outs were again dumbed down, lions just aren't paying what I'm used to seeing for a top pay symbol. Plus I sort of felt the picking your free spin bonus added to the thrill. Versus the new the game spins for the amount of free spins offered.
OMG Puppies:
What can I say, they saw the success of OMG Kittens, and decided to go after the dog lovers to boot, yet didn't change most of the original game except for change the symbols to puppy related symbols.
I just hope something pops out at me in the future.
As for the games you are looking for in the post here, I do some of them still in the original jackpot party facebook game. Which tells me they haven't done away with them all. I think just the places offering these slots don't see these as offering huge potential is all I can think of.
Judging from what I have seen at the past two trade shows I'd say that's not the case, certainly as far as land slots go. Plus I met the WMS Interactive people and there are still quite a few of them...all still working as "WMS". I think it's a pretty safe bet that Sci Games bought WMS because they are a market leader as a result of being so innovative.
What with the US gradually developing an appetite for their games online as well, I can only see it getting better.