My personal hope is that the series doesn't end with the two of them getting together, although at this point that seems likely. The two of them are interesting enough that I'd like to see them navigate an entirely new sort of relationship. I mean it's not like their personal issues (especially Keiko's) will be suddenly solved by making it official.
Did this mean not get together at all, or just before the end? I'm fairly certain not at all, my confusion stems entirely from my not brain not being able to compute an ending where they aren't together. What sort of relationship could you have meant I wonder? To me, I feel if they don't end together, that leaves the door open for future partners, and I can't see anything other than a partner being the most significant relationship in someones life, and to me, these two have to be the others most significant relationship.
Oh God this is muddled, but I can't multitask well enough that I can both type coherently AND listen to 'And Then There Was Silence' at the same time.