Can iphone 4 or 4s cases fit the iphone 5?

I found this iphone 4 case that I really like online, but it only has iphone 4 cases

No it wont. Simple as that. The iPhone 5 is taller than the iPhone 4/4S even though it has the same width. Plus its also thinner, which means it wont be held firmly in the case.

No way, the iphone 5 was made larger in length so its not going to fit

Of course not, you can skim through this site, maybe you'll find your favorite.
http://www.luxurycase.co.uk/

No it won't. The iPhone 5 is thinner and longer.

Can iphone 4s cases fit on ipod touch 4th generation