So is it only the 2 end blocks that have gone on sale ?
Looks like it. I don't know what would trigger another block, is there likely to be a sudden rush - I doubt it, although it is some way off yet.
Home tickets aren't on sale yet, so they'll probably put the other blocks in with the home tickets if we don't look as though we'll sell a whole other block. Two blocks is only about 1,000 seats I think.