i hope the new dlcs will feature more modern rides. cant come around to feeling like what we have ingame is somehwat of a "classics" ride collection. no shooting rides, no drop tracks on the powered automated ride, no switch tracks on the launch coasters, no shuttle water rides, no launch tracks steeper than 90 degrees, no inversions on the multiverse coaster, no round stations on rapids, no double stations for coasters, lots of funfair flatrides instead of modern themepark flatrides... this is of course only my personal feeling i have about it. most of times i find myself wanting to create stuff like voltron, toutatis or other crazy stuff, and most of times it just isnt possible due to limitations or lack of flexibility when it comes to coaster type selection.
the fact that we can attach scenery to cars offers perfect possibilities to implement stuff like madhouses or flying theatres. thats where the whole potential lies of this feature, yet its been left untouched so far (probably due to priority on bug fixing etc). but yeah i hope frontier realizes that and delivers on that potential
EDIT: oh and please frontier, no more ride packs only. i dont wanna buy a pack with only rides. take an example of the first planco game which not only brought in different rides but also combined those with different themes and new building pieces. thats how i wish these dlcs would be. if its gonna be rides only or split up in rides and themes pack than tbh i will most probably pass on them, of course taking into consideration also the pricing.