well, it definitely could because i have no idea how far Rick intends to go or what his way of implementation is..
i chose the most logical means of expanding group features that i saw.. i liked the way he cached forum permissions, so i fit in group features the same way.
oh and i only had 1 afternoon/evening (late one) to slap the code together too

he may be thinking something different and on a more grand scale..
example would be that i created a totally NEW table for the group feature cache.. well.. maybe we wanted to just add a field for the serialized features per user in the ubbt_CACHED_PERMISSIONS table instead..
and there maybe more things we want to add in the way of group features such as:
- group can use [img] in posts
- group can have [img] in sig
- configurable edit time per group
- configureable delete time per group
- group can toggle html markup
- ability to ignore users
- use of special tags.. ie: [yahoovideo]..
- group can have more characters in their sig
- group can upload sigs to a storage area on server (ala avatars)
- group can create polls
- group can conquer the world! (i joke)

- and on and on...
so although i'd love to be privvy to what's in Rick's brain, as there is some neat stuff rollin' around.. i can't.. sooo
Rick will be the best one to answer that...