DD was a 34 weeker and did everything on corrected age development wise (sitting, crawling etc)
However in terms of growth spurts and sleep it was all a mess unpredictable. She had tongue tie which screwed everything up for the first 4 months.
I have read however that late prems often catch up weight very quickly - which I guess would mean they must have more growth spurts than average?
For example my experience was that DD was born on the 50th centile (just under 5lb which is average weight for a 34 weeker), then dropped to 25th while in hospital and tracked that until about 3/4 months when she started jumping centiles and by about 9 months she was on the 75th centile and now tracks that. So basically some big growth spurts from about about 4 months onwards. However it's possible those growth spurts would come earlier in a non tongue tied baby.
In terms of feeding frequency, as a matter of common sense I would expect prems would feed like a newborn for longer, simply because they are smaller for longer and so can't feed as much in one go.
I remember wondering the same as you - how do I adapt all those week by week sleep/feed/routine charts to my prem DD. The short answer is you can't really. You have to be guided by your baby a bit more than a parent of a full term baby, as your baby is rather further from the "textbook" iyswim.
Sorry bit of an essay there!