The Lucasartsgames Twitter Feed indicates LucasArts has an announcement planned for Monday (thanks GamingShogun/VG247). Though one of these tweets mentions this will be "awesome news for our old school fans," the most recent post clarifies that "It doesn't have to do with any specific intellectual property..." Here are the relevant updates:

Amazing news coming Monday! Super excited! You have no idea how tough it is not to start yelling about it! But it's secret! Until Monday!

I don't want to tease, it is just tough not to say anything! I might be tempted, however. Have to think about it over the weekend. ;)

Okay, we will do hints. It is awesome news for our old school fans. (anything more direct might get me in trouble)

Monday, early, actually. I suppose if the president of the company messages me to leak it I would. Til then, it is teasing. Sorry guys.

@TTU_VAPOR It doesn't have to do with any specific intellectual property...