I've been looking at SMW's plans for the LTS and talking with other people on-wiki and off.
As a result, LTS is firming up:
* Security patches supplied until May 2015. * Compatibility extension for those features that can be put into an extension. * Back porting of other features. Where possible, we will only add hooks that the Compatibility extension can use.
Also updated:
https://www.mediawiki.org/wiki/Version_lifecycle
Thanks!
Mark.