I had to bring DD's wake up time earlier over the course of a week or two before returning to work so I could get her fed and dressed and to my mom's in time. You might want to aim for the routine you'll need to get to work on time as well. Even if you have to do a 6pm to 6am! Or you could let him sleep til 7am (I do this for DD) and I have from 6 to 7 to get myself ready first (although she sometimes is up earlier and messes with my ingenius plan
)
The bringing him to your bed thing could definitely become a habit and he may like it more than sleeping alone and then you essentially become his "lovey" and he might end up NEEDING your presence to sleep well and this could interrupt sleep that he is already good at doing on his own. I would try to look at your routine to see if that might cause his EW or try wake to sleep if he is habitually waking at the same time. Definitely black out curtains (or blankets over yours like in DD's room hehe) help when they are more aware and notice the light and birds chirping that they might not have when younger. If he doesn't cry, I would leave him in his crib and let him amuse himself with his mobile, feet, hands, whatever and start your day at the time you'd like to start your day at. Try to keep your first nap as close to normal as possible (as long as he won't be completely miserable and OT) but if you can get him to the normal time, you might get him to sleep later as he won't catch up on the lost sleep so quickly in the morning and it should encourage later waking.
Also, if you could post your routine....others will be along to help you out as well!