I (or we, self and partner, if possible) would
definitely hope to be able to come to an Autumn visit.

We appreciate Simon's efforts and the need to fit in with the Company's requirements, but, as with others who have posted, the more-notice-the-better when a date is arranged would be good. We both have to arrange leave from work well-in-advance so that there is cover on our rotas, and, in fact, single days at short notice can be the most difficult breaks to fit in.
Subject to that we'll really do our best to come, of course.