Every single God of War E3 display to date has been altered significantly on final release, most of the time with upgrades and gameplay/story changes. It won't be scrapped entirely but it will not look the same as what we saw.
Even if God of War and Days Gone are 2018 Sony still has a stacked 2017.
- Horizon
- Nier
- Nioh
- GT Sport
- Gravity Rush 2
- Detroit Become Human
- Persona 5
All of these (except Detroit maybe) are borderline 100% going to come in 2017.
And if even one of these also gets released this year alongside them:
- God of War
- Days Gone
- Spiderman
- Final Fantasy 7 Remake
Along with the aforementioned it will be one of the GOAT years for Sony.
That's what I hear every year. The last time it held true was 2011. Heard this narrative in 2015, 2016 and now 2017.
I know games take a while but Sony are notorious when it comes to announcing games early, then delay them further. Only time a game successfully came out on time this generation was Bloodborne and Infamous.
I won't say jack until its December 2017. I already knew God of War and Days Gone would be 2018 titles, but I still have hope for Spider-Man and Detroit. This year they already delayed Uncharted 4 and The Last Guardian while pushing Horizon, Gravity Rush 2 and Gran Turismo Sport to next year. It'll likely happen again.
I wouldn't be annoyed by this if we actually got more games from Sony beyond remasters. If you own multiple platforms, it's a problem.
Best wishes.