No new girls, just little side scenes expanding girls personalities, UI redesign and perks system.
BTW just finished v0.2b and holy shit it's overdelivers, its basiacally full game except some rushed ending, like other games usually do. Progression is nice, no grind whatsoever. You have 250 points out of 1000 per season cap and enough extra stuff like sex scenes or story scenes to get them throughout season. Every new sex action gives you like 20 trust/20 love. Dates have sex options handjob in cinema, blowjob under table or toilet sex, which is gone in 0.3a. There is a plenty of clothing options nicely split between seasons to buy. Performance is better to, might be because reworked verison uses higher resolution assets.
If you want to play the game now just use 0.2 version untill developer finish work and brings back old stuff.