Are EK still offering the accelerated-command program? If that's so, how would I stand?
To get an accelerated command, you need to have "topped up" your hours and experience while in EK to the same level as a DEC. e.g. you would need to have had 2000 hours command before EK, but where lacking the total hours needed, so got those in EK.
Accelerated command is one of those things that comes and goes at the convenience and whim of the management. Many pilots with suitable accelerated command experience have had to wait over 4 years for command, while some have been lucky and got accelerated in 18 months. It really is just a matter of luck, not an ideal criteria for career planning.
What about DEC in a couple of years?
Always possible, they will always need pilots and will always be tempted by the cheap option of DEC's (saves one extra training course).