There is no official statement on who the intended audience of K-Meleon is. This makes K-Meleon one more of the Free (Open Source) Software projects that are written by the people who use it for the people who write it. What features are added next depend solely on the interests of the contributors.
There have been suggestions to try have a new release for every other Mozilla release. This has not been the case though. The contribution and motivation level have been way too low for that.