Will SUES be providing a SDK like they did with 11 or are they just going to include the devel packages as standard ? - forget this one I see they added it to the downloads.
Also I noticed that several packages are missing (not available) in 12 that were in 11, i.e MySQL and PHP. Any idea if they will be added later on or is there no plans to add these packages ?
Not really. It would just create confusion. People would post in the not SUSE 12 forum about SUSE 12 and people would post in the SUSE 12 forum about versions other than 12.