I am a huge fan of the series. Truly enjoyed 1 2 and 3. Didn't care for Judgment but its rare I ever support spin offs or pre-quals. The trilogy was excellent and each game was better than the previous with the 3rd being absolutely amazing IMO. Especially in 3d.
I have a feeling something will for sure be announced at E3 this year about the next GOW title. Not sure if it will be a collection of GOW1,2 and 3. Or if it will be GOW4. Or a spin off, maybe another prequel? Not sure but something will probably happen at E3 2015.
I also expect something to be announced about Mass Effect at E3.