More specifically can anyone shed some light on how well the 17L and 24L TSE's are selling, especially in relation to the older counterparts (24, 45, 90)? I think sales numbers would give a proper indication on how high up in the priority list refreshing or adding these types of lenses are to Canon. Unfortunately I get the impression they do not appear overly popular on these forums and they seem to remain niche lenses (in comparison to traditional AF lenses).
The TSE 24LmkII has proved to be one of the most enjoyable purchases I have made since I began interest in photography a decade ago. I'm happy with my current lens-lineup, but I'd be willing to shake that up for a new offering from Canon.
Obviously Canon has other priorities, but I'm hoping to see new TSE offerings within the next 4-5 years. Am I dreaming or could this be a possibility?

.
