The S805 will be powerful enough to actually play games at 1440p, with the S801 and S800 both using adreno 330 GPUs where as the 805 (and presumably the next SoC iteration from Qualcomm as well) uses the much more powerful adreno 420. Also I will never complain about more RAM, heavy multitasking will slow down phones with only 2GB easily enough.
People also said once we had 720p phones going to 1080p was stupid because you can't see the difference, which is stupid and untrue, going from 1080p to 1440p won't be a huge difference, but I can pretty much guarantee the 1440p one will appear crisper and better looking.
A 5.5-6.5" 1440p, 3-4GB RAM, 12-20MP camera (preferably with OIS and 2160p video), and S805 or better is in my opinion the next flagship device by the end of summer or early fall, whoever gets a decent one to market first however is still up in the air.
Hey, you're talking to someone who appreciates specs. There's a reason I use the Note 3 and upgrade every year.
But I think you're putting too much emphasis on benchmark improvements vs everyday usage. The vast majority of users will never know the difference between a S801 and S805 5" device. I don't game, but it's hard for me to believe any game stutters on a S800 powered phone, much less the S801. And come on, we're talking about 5" phones here - going from 720p (293dpi) to 1080p (440dpi) had clear benefits, regardless of what a few folks said. The same benefits simply aren't there going from 440dpi to 587 dpi. If the 1440p screen on the new Oppo phone is any indication, you may actually lose out on contrast and viewing angles in this first gen.
The RAM and camera specs are available today, simply no OEM has chosen to put them in all together. You can certainly hope that someone will, but so far Samsung, Sony, and HTC have not. What will have been the value of waiting for several months, only to find no such phone is actually released?
In the phablet space, 1440p screens start to make sense, especially if the Note 4 is around 5.9". But most phablet users are on a fall cadence anyway and are going to still be a niche audience compared to the 5" mainstream users.
I still stand by the belief that if you want a 5" range phone, you should buy one of the current flagships instead of waiting several months and hoping a super phone comes out that doesn't actually go backwards in some aspects (display, battery life, etc). If you're a phablet user, you're going to wait to see what the Note 4 looks like anyway.