City trains will most likely return in the summer, as pictures have leaked. Unfortunately, it's basically expected that the train sets will be around $125-$200 as that's what they were the last time around (that could change of course, but given what the sets look like from the leaked pictures, I'd expect it to be the same). As for Creator trains, it seemed like there was a trend for a while, but that doesn't seem to be the case anymore. Hopefully we'll get one next year, even if it's something like a re-release of the Emerald Night.
Overall, City has had more train sets (12 to WC's 8), but that's only because of how long it's been around. As for the "pattern", it seems to be 2 trains and a station, plus the occasional TRU exclusive related sets every 4 years seems to be the cycle. Part of the reason I think the number of sets per wave has decreased is because the train sets include many features that would've been a separate set 20 years ago (like the cargo station in the 2014 cargo train). Either way, it would be nice to have more train cars and other additional smaller sets.
After seeing the leaked pictures of the presumed summer passenger train, is it possible that there may be sets for additional cars? The train seems to have a sloped front on only one end, like the Horizon Express.
