Templates are set to be slipstreamed into the 0.8 specification because their important enough to do so :)
Chris Bissell (& friends) from myspace have been working on a proposal to expand the templating specification to allow a more 'standard web development' usage of the templating system, which is looking really good.
His proposal to the list:
And he maintains a wiki with the details of the proposal at:
I'm hoping we can reach consensus on- and vote for this inside of the 0.8.1 time-frame, so we can introduce this together with the already existing templating specification.