All they would have to do is enable Annex M assuming their DSALM support annex M and clean up the line if stat aren't good enough, they could get up to about 3megs from what iv read.
Also 12meg has been at 768k wince it arrived witch was about 2 times that of the other packages I'm just hoping they keep the same type of speed differences.
SNR is lower on upstream with Annex M. Expected but possibly problematic. Also, upstream maxes at around 2 Mbps even with Annex M. I also wouldn't be terribly surprised if a fair amount of WS's gear can't support Annex M either on the subscriber or DSLAM side.