Drop Image Profile from v1.3 - consult and consider

[nigelmegitt]

As proposed in #551 (comment) and discussed in w3c/ttwg#301 (minutes), we should consider, alongside the community of users, dropping the Image Profile from v1.3, in part to resolve the difficulties concerning the need to provide alternate text representations so support accessibility requirements.

If we are going to drop Image profile it might make sense to do it in 1.3, with the consequence that 1.2 would be the last version that supports it, because we already dropped HRM provision for Image profile in 1.3, and indeed the image-related part of the HRM was removed in imsc-hrm relative to IMSC 1.2. By dropping it now, it is clear that the normative requirements for Image Profile do include meeting the HRM provision in 1.2.

• Draft and circulate an outreach message explaining this proposal, to the usual interested groups, requesting feedback in some specified period.

Then, if there are no comments against, and especially if there any comments in favour, drop Image Profile from v1.3. Conversely if folk do want to update Image Profile in some way, it would be useful to know that, and we could consider making improvements as requested.