Given the crack down by security in recent seasons on standing - last season (I think) I was walking to the toilets around the top of the rink whilst game in play. I stopped to watch a key moment, for about 3 seconds maybe, and had this lad with a table tennis bat telling me to move on....anyway
Given they have been strict with that, and with the narrowness of the walkways around certain blocks I'd guess this is limited to the corner by Block 13, and maybe that side of the arena - as you couldn't have shelving for standing spots by the DJ room etc due to the disabled spots and lack of room.
I wonder if those who purchase a 'standing seat' will be constantly asked to produce their ticket to security, and if (as I suspect) the price will be the same as a seated ticket. The standing section at the top of B10 is the same price as the seats around them.