Prompted by Michael's valuable feedback, I've tweaked my 'working abstract' to offer a little more focus to my proposed plans. Rather than taking a broad, open view of the attitudes of tutors towards alternative format assignments, I've instead focused on how assessment can be reshaped to meet the challenges posed by a shift towards multimodality and alternative format work. Here's the thing:
I've e-mailed this off to Sian. I feel better about the abstract now.