I know that the owner of wikidevi does not have the time or power any more to keep it running, but that he wants to shut it down completely is new to me.
I have faint memories of something I read on wikidevi: It has been created because there was no such thing.
I find it incredibly usefull, not only for OpenWrt, but for every project that needs in depth hardware information.
My opinion: wikidevi must not die. I would even go as far as offering myself as the new admin who takes care of the data and keeps it in shape.
Regarding the data: We should keep a copy.
@aparcar can you make use of the wikidevi data in the new devicepages?