Our start up web page in ProE WF5 is
This gives llinks to Top Ten Reasons, Enhancement Details, What's New Tutorials etc. Depending on your line of work there will likely be something interesting for you. Note thta there is no menu mapper for WF4 to WF5 (which is a pity but has not been too much of a handicap to us).
I made a synopsis of what was most interesting to our company (in my opinion) and I have attached that for you and others to use.