ADSL2+ by definition includes ADSL2 and ADSL speeds.
Speeds, yes, connection, no

My exchange is Market 2, but only because Virgin offer a cable service to a few houses, so there is no LLU / 21CN available for me so I'm using IP Stream.
There doesn't seem to be a definite NO publicised, but the story on the front page only lists ADSL2+ as the platform.
plusnet 4/11/2003 -> 4/3/2009 512Kb-2Mb
O2 Standard LLU 4/3/2009 -> 23/6/2009 ~3Mb O2 Access 13/7/2009 -> 22/6/2010 ~8Mb
plusnet 22/6/2010 -> ?? ~8MB