Cascade and the material editor in UE4 is very similar to UE3. I haven't seen that DVD, but I'd think 90% of it would transfer to UE4. The biggest difference is anything set up in Kismet would be totally different now that UE4 uses Blueprint.
Newbie question please.. if I want to learn how to use the engine with UDK, how hard would it be to move to UE4 in the future? Or should I start with UE4 right away?
PC Exclusive. PC<. Why would they port anything if they started making new game on UE4 in the first place. They are working on UE4 for more than 5 years now. It's not something that just popup from air.