Yes if you mean the new MARS/AEGIR Tide class expected in 2016, I'm collecting references now, but apart from some BMT sales brochures and CGI which is different all the time haven't got enough to work with yet.
I have some other RFA ships in WIP but nothing ready to post yet, The RFA is a very important and often over looked service without it the RN may as we'll have a few rowing boats
Although with our government give it ten years that may not be far from the truth Lol.....