Loading the new_game+ save works fine on the new release, extras are in the menu.
Also be aware that on these saves combat animations and cut-ins are disabled or sped up to max, so make sure to enable them at the speed you want.
*Also some equipment disables h-attacks in combat.
As for mods, H attacks from enemies now have a ~1/3 chance of getting her to climax.
If you have a version where the game data is packed into a "Game.rgss3a" file you'll need to extract it first with Rpgmaker Decrypter, then move/overwrite from the extracted folder to the main directory and rename or delete "Game.rgss3a".
After that you can replace the data/skills.rvdata2 file with my modded file.