This surprised me. No new parks to add and no retractable roofs to work on so you'd think a few new ballparks would make sense. I can only assume they were on a very tight budget and didn't want to pay whatever licensing costs were demanded. The reworked backdrops at the minor league parks are a poor substitute since those parks range from forgettable to silly.
Somehow I suspect we'll get a ballpark creator before they add more parks (not that I think a ballpark creator is coming anytime soon). But if they were to add some, I'd personally like to see some of the more attractive/interesting minor league parks get licensed and put in the game. Failing that, a complete overhaul of the minor league parks they currently have with an emphasis on mimicking real life parks would be welcome. More realistic ST parks are also needed.