ESPN recently released their new top 100. Walton ended up at number 30 but here they mention that he could be a potential sleeper (in fact the number 1 sleeper). They talk about how he could very easily end up like Burke--regarding as a good prospect that turns into something phenomenal.
Personally I'm pumped for Walton. I expect him to be a very selfless point-guard that gets everyone involved. Obviously it will be a decline from Burke, but not a crushing blow to us.
The article is Paywalled. Here is the link