Very, Very tight, if at all.
HDDR is approximately 2 hours long. So you are out between 8:05 - 8:15. Then you need to wait for a bus to the front of FW and then wait for a bus to Epcot and then travel by bus to Epcot, OR wait for a bus/boat to the MK and then monorail to TCC and change and wait for a Monorail to Epcot. The monorail ride is about 15 or so minutes. Then you need to walk to bag check, get through bag check, get through security, get through the tap stiles and get through Future World to have a crowded view of Illuminations.
I wouldn't try it.