Thanksfully it's not as dire as that, mate. The CWH Lanc and the BBMF Lanc are the last two flyables. Just Jane taxis under her own power, and there's talk of getting her airborne again. The Ian Bazalgette Lanc does engine runs (now all four make that crackling good Merlin song) and several more live in museums in various states.
https://en.wikipedia.org/wiki/List_of_surviving_Avro_Lancasters
Every one of those old girls that we can get flying again is a triumph. I've attended world-class air museums and there's something very sad about all that magnificent power made mute. I very much prefer places that operate aircraft (like the Flying Heritage Collection). When they don't fly them, it's more an "aircraft masoleum" than an air museum for me.
The last time I visited fantasy of Flight in Florida (6 years ago) I think I heard they had a Lanc in crates.