Rumour has it
that the feasability and design changes required for a carrier Typhoon conversion have been 'considered', also a costing of the technical publication issues has also been looked at with regards any changes that may, or may not be possible. Wether this can be done within the timescales of the F35B I do not know if this was considered. Rumour also has it there was some talk of a requirement to modify the new carriers to allow the Typhoon version to use it. The only other rumour was about a rather complex nose door arrangement that someone designed to accomodate a new nose leg. Sorry if this is a bit vague but one does not know what one can or cannot say nowadays for fear of reprimand or worse. It is also possible that a carrier version of the Typhoon was mentioned to the odd person across the pond who has the occasional interest in new aircraft
.