Pull the counter 3-4" forward of the raised slab and you will have space to run the waste line and you could bring the trap to the front also.
Then you could run left or right, to wherever there is a waste stack.
You might need to leave some more space for access to the furnace. You also could fake a pantry where the furnace is, and hide the HVAC sheet metal.
Have a floor plan?
I could see the raised area being built as a storage closet. Maybe some Gorilla rack on the back wall, to maximise storage. You would need to have a
vent somewhere to allow combustion air into the enclose space.
I would call it a creative use of space.