Thank you for starting this thread, which I've been following with great interest.
May I ask, though, what the rationale behind your question is? A degree focussing only on Sanskrit language and Sanskrit literature (even though obviously we all agree that 'only' Sanskrit language and literature offer enough material to keep a learner busy their entire life) does not strike me as particularly useful: lectures/classes on literatures, philosophies, religions, cultures, histor(y/ies) are what allow us to understand the contexts in which we should (and probably need to) read the texts we then choose to focus on in dedicated classes.
How would a student know which texts to take courses on if they don't already have background knowledge of the world(s) within which those texts came to be? Would those contexts then be introduced in each individual reading class?
Or perhaps differently put: if you think that a 'pure' Sanskrit undergraduate course might be more fruitful than the kinds of degrees mentioned in this thread (and I don't know if you think that, of course), what would your ideal BA in Sanskrit look like? What requirements would it have?
All my best,