I have a core i7-920 and I have been noticing that core i7-9xx upgrades are disappearing from the vendor websites.  They can still be found on pricespy.co.nz and I suppose I can order them in specially from one of the reputable vendors.

Does this mean that the days of the i7-9xx are numbered ?

The CPU still gives good performance for my day-day tasks, but I can get almost double the performance if I take it to i7-980

I don't want to go down the i7-2xxx route as that will require another motherboard as well.