Just received the we're-about-to-cancel-your-flight-but-want-you-to-take-a-voucher-before-we-do email for a LGW-PMI flight on Friday 12th June so looks like some further pruning to the LGW schedules is imminent
I've just had the same for my LHR/VCE flights in June and had the same thought. Just waiting for the cancellation one in a few weeks - or days.