I really sorry that you'll be for 9 weeks without your T...

Before my much shorter break, T has also asked me if there is anything she could do to make it easier... And my immediate response was of course "no, fon't worry, I'll survive " but somehow we managed to find some ways... And one way was that my T said that she'll respond to my e-mails (she usually doesn't). As part of the break was when I had holidays or conference and not my T I could accept that then she could response (I couldn't bother her during holidays though), she even suggested different ways of responding depending on my needs etc... At the end I didn't need it but knowledge that I can if I need was good enough

Maybe you could think together about the "backup" plan? How to keep the connection (maybe he could write you a letter, record his voice etc?) or what to do during a crisis etc...