Hi there,
My follow up book Beginning ASP.NET 4 does cover more new things: jQuery, Entity Framework and many changes to Visual Web Developer and the .NET framework. But if you have the 3.5 version already, getting the 4.0 version may not be your best "update path". You could get the Pro edition of the 4. version instead:
Professional ASP.NET 4 in C# and VB.
Cheers,
Imar