devtrackers.gg
Not exactly (I don't think) , like in the patch notes, or list of profession skills, if you mouse over the link it would show you a tooltip as if you had moused over it in game.
Yes there will be a tooltip via a new extension we've installed, but from what I can currently see it will need to be configured and that may take some content tweaking? I'm not sure, but those tooltips may not be ideal until all the content issues are sorted out (like /u/chieftainalex mentioned in his comment)