The hard thing was that sometimes if you didn't call all the cutscenes Ren'Py wouldn't know where to "return", so in VN mode where the various cutscenes are skipped I had to add manual code to tell where to go back (to the main plot after that battle ended).
In Queen Of Thieves for example, because there are no such cutscenes, the VN mode was implemented with 5 minutes of work

That said of course a new framework would be cool to have. Including the changes to the card framework to use it for Undead Lily
