EX is now in the quality testing phase, then UI (support for other resolutions than my 1600x1200) will be set up after that. Quality testing means I'm playtesting the game as thoroughly as I can for issues and game flow mechanics before I release it to you guys. There are a few systems I didn't say much about which need to be fine-tuned. All gameplay features are implemented, they just need to be adjusted to make the game work as intended.
There is still a major issue caused by using the latest official svn save file system. You can't add new unique girls to the game without restarting a new save. If anyone happens to be reading this and has some familiarity with the code for whoremaster, I'd like some help. The problem seems to be that it loads the unique girl and sets the unique girl into the <Loaded_Files> <Girls_Files> section of the save file but doesn't do anything past that. The unique girls won't show up in-game, nor will they be saved into the save file xml.
If that issue doesn't get resolved, it's going to conflict with converting girl files over to support EX properly. You'll still be able to use your unoptimized .girlsx files, but they won't be ideal.
Another feature of EX is that the game will by default automatically give your girls items based on the job they're doing. Every job has around 5 stats that directly relate to either the success of performing the job or the maximum number of customers a girl can service per turn. The auto-use items code will attempt to give girls items and equipment based on that. For example, if a girl is a stripper, the game will try to give the girl items which add to Stripping, Beauty, Charisma, Confidence, Constitution, and Spirit, which are the important stats for the job. It will override items that don't add to those stats. The option can be turned off in the config file for people who don't want to use it. This is nearly the same thing as what you already have in the official whoremaster (it's turned off by default), but more specialized.