Hi there,
I'm not wise in the ways of software fu, but I've been opening the program directly from the LotROTCG.exe. This skips the whole check online for updates' step, and so I wonder whether it will be possible to keep offline deckbuilding even after Online Play ends.
Also, I don`t know if such a thing is possible, but a utility to convert Decipher deck files to xml files (or whatever type of files your deckbuilder will use to store collections and decks) would be absolutely amazing!
Anyway, it`s fantastic that you`re planning this project,
Just my 2 ep worth,
Redgar