Will this godzilla be fast or slow?

Most things indicate that he will be slow. And it makes sense.

Look at the legs on basically any Godzilla 2014(Even the old Encounter models)- They have these muscle builded, almost (ALMOST) elephantine-legs, that indicate a monster that, while being slow, is build to be a fortress, instead of the therapod legs made to run fast and hunt.

And being this big and slow, he most likely will not be able to burrow. Atleast not in the same way Zilla did.

However, the way he is build could give him a crocodille-like speed in water. Like a torpedo.

Zillahater is right. Godzilla looks not, like he's fast and the classic Godzilla isn't fast. He was fast in some Showa and Milenium Films, but the Godzilla of 2014 is supposed to be like the Heisei Godzilla and that means, he is slow. 
To make him slow is the better descision, because seeing him running would be kinda stupid.

i hope he will be able to do something like a quick burst forwarsd so that he can charge his opponents

LIKE A BOSSK I totally agree with you, like totally, letting him be slow will let us know and feel how much strength he has and stuff, but then the other side making him fast would make him look silly and awkward.

could be both slow walking but a bit faster at running i say slow because in all godzilla films to date except that 1998 film he has always been fat and slow moving

I hope he will be a middle speed but he will probably be a slow mover.

It looks as if he will be slow(Which is more scary in my opinion). However, just as ZILLAHATER said, he might be fast in water. Zilla was more so like a less destructive version of the Cloverfield monster. They are both agile yet run in fear, except Clover brushed off every missle to hit. Even though I like those monsters as monsters, Godzilla himself is not a creature to flee in fear. He simply gives fear. And eats missles, with a side of heat ray. But, ya..I dont think this one will be too fast considering hes the biggest and most bulky Godzilla up to date(Not counting the Marvel Godzilla). 

Making this Godzilla run will be like making an elephant jump around, it will just be really out of place and not even physically possible. This godzilla looks like he would even struggle to walk sometimes, especially in a city where there are obsticles everywhere, like in Godzilla vs Mothra, Godzilla trips up and falls onto a pagoda and gets his tail stuck in things, that godzilla design wasnt as bulky as this one. So this new Godzilla would be likely to have trouble walking through a city, never mind quickly charging or even running, he would probably just fall over.

I'm ok with Godzilla being slow, kind of a methodical towering menace. 

However, I would like him to be able to CHARGE or have sudden bursts of speed over short distances. That way when it happened it would be intense, and catch you by surprise. Like if Godzilla rush tackles his opponent at least one time :-)

More important than speed though, I just hope he isn't clumsy. I'd prefer a flexible Godzilla, that can peer around corners, that can sneak, can turn on a dime, and is kind of nimble. This would make the physical combat much more compelling to watch, and would give Godzilla some cool jump scare or hide n' seek moments. 

Don't get me wrong, I want to watch a 'big badass brawler' Godzilla as much as anyone else. But that's not ALL I want to see. I like to see glimmers of other things thrown into spice it up. Just to know he's capable of more stealthy or athletic feats would definitely raise suspense, even in the scenes where he his just lumbering forward because you wouldn't be 100% certain of what he'll do next. 

Long Story Short: The main focus can be slow, powerful movement, but his movement shouldn't be predictable, he should have a wide range of movement possibility in addition to his default mode.

Slow moving becuase of the size, but faster than actual physics, because no movie-goer wants to watch Godzilla take one stride that takes 20 seconds in real time.