IPhone 6 or iPhone 5s - when?

So there's loads of rumours and photos of the iPhone 5s/iPhone 6 going around. I've got a few questions and will love anyone who can answer them!-
-iPhone 5s or iPhone 6?
-When is it supposed to be released?
-Is there an "official" photo of the new iPhone? If so can you attach a link
-When the new iPhone come out will the iPhone 5 drop down in price?
-What is going to be different about the new iPhone compared to the iPhone 5?
-I've got £800 to buy the iPhone 5 but should I hold onto my money until the new iPhone comes out? (but I will be without a phone until it comes out)

Definitely wait, i doubt if it will be that long, and is rumored for a summer launch.

IP5S 2013

IP6 2014

Then IP5S WILL be 4G LTE READY as ALL, every single IP5 is ONLY 4G LTE on EE as only one 4G LTE band 1800 MHz used ONLY by EE

The Worlds most famous phone is NOT in the March Vodafone or O2 magazine why, as YODA & O2 will used another frequency and as Apple only made the IP5 for EE, and both networks want to sell the IP5… Well

Note source

I doubt that in 2014 even the IP6 will have the same specs as the 4G LTE READY… (my bad alREADY!) Blackberry Z10

Not so much a drop in price but better specs are required [to justify], as the IP5 with a 1.2 GHZ DC processor & 8MP camera was 18 months AFTER the Samsung Galaxy SII with the same1.2GHz DC processor & 8MP camera

Personally i would suggest you wait now because it won't be that long before we see a new device from apple.
And don't listen to any of the silly little haters on here apple products are fantastic and you won't regret getting the iphone no matter what version you decide on getting.

The 5S (assuming Apple sticks to their naming scheme)
Rumors say as early as June or as late as September
No
Yes (to $99)
Not known
Up to your level of patience

No one has a magic crystal ball.
There will always be new versions as everything is always evolving (and should be!). Hardware especially is always improving and getting smaller and better. If waiting for the next version then you will always be waiting.