The decision to switch to Ice Lake happened some months ago and they have been redeveloping it since then.
In the end there were just too many issues with the v1605b and zero support from AMD.
Hard to say when the Indiegogo campaign will be. Depends how they go developing it, but of course Intel is something they are very experienced with.
I'd say around mid year at a guess given where they are now. April-Aug sort of thing as a spread