OK, I just came back from the Immigration Office where I asked about what is moving to the Promenada location. According to them it is only the 5 things mentioned above, Retirement, 90 day check-in/Reporting, Tourist, Medical Case and Re-Entry Permit will move.
Basically these are the things the Immigration Officer him/herself can decide to grant it without having to refer things to Bangkok. However, all other things like BOI Visa, Non-O Spousal Visa etc. where things need to be referred to Bangkok, will stay at the old location.
When I brought up the issue of extending a visa at the old location and then having to travel to the Promenada complex for an Exit/Re-entry permit it was confirmed that, Yes, indeed that is a hassle but that is the way it is. They did indicate though that things might change over time but for the moment it will only Retirement, 90 day check-in/Reporting, Tourist, Medical Case and Re-Entry Permit will move.