Originally posted by Hidrieus Do you think that there is any chance . . .
Since the last K-5iis firmware update was about five years ago, I would say there's little chance.
I think it's rare for individual input to affect corporate decision making, but you could try to contact Ricoh Imaging or express your wishes here:
Product Suggestions and Feedback - PentaxForums.com
If you're happy with your K-5, perhaps you could watch the Marketplace here and buy yourself a backup body?
Edit: And as far as I know, the K-5 was the last model to have Image Comparison.