Oh yes, a lot of changes, especially in Singapore, Kuala Lumpur and, to a lesser extent, Penang.
Penang’s a UNESCO World Heritage site, so the city has a strict set of rules to conserve its historic buildings (its old downtown even has height restrictions for buildings - none over 4-storeys), unlike Singapore & KL where much has been lost when graceful, old structures were pulled down to build skyscrapers. 
