Re: What possible delay?
More to the point, I can't see that asking for a delay will achieve anything other than a delayed no deal.
Despite Theresa May shuttling back and forth across the channel, there has been no substantive change to the agreed conditions of exit for the last two months, and I don't see that there ever will be, the EU has stated its case, and that's that.
It is past time for May to admit that she will not be able to re-negotiate the terms, and that we are stuck with what we've got.