Elise changes on PBE look promising!
As a jungler, I'm curious to see how these new changes will affect Elise. For the most part, they appear to be a step in the right direction in terms of power.
From what I gather, the changes are designed to make her Spider Form more centered around on-hit burst damage drain tanking akin to how Warwick works. In addition, the upcoming re-works of various AP items could make her a very very nastily effective AP bruiser.
However, the changes don't give Elise any synergy between her Spider and Human forms. Human is distinctly mage, slow with some decent CC and current HP burn, while her Spider form is focused on mobility and bursting down/drain tanking her enemies while in melee range.
While I think this is a good healthy buff for her, I'm still quite wary considering her sort of split-personality archetyping, which isn't doing her much good.