1. January 1863
2. Yes the War was still going on.
3. The E. P. only had effect in the North since the Southern States had succeeded.
So, I think your premise is correct - he only freed the slaves in the North.
The EP explicitly covers only slaves in seceded areas. It did not cover any slaves in the north and did not actually free any slaves at all. It wasn't meant to. As late as January 1865 Lincoln was still open to the idea of a compensated emancipation and offered 400 million dollars for that purpose at the Hampton Roads conference.
"Did the Emancipation Proclamation free all the slaves in the United States? Many people think it did, but the Emancipation Proclamation did not free all the slaves in the United States and here is why.
The Emancipation Proclamation didn't actually free any slaves because it related only to areas under the control of the Confederacy. The South broke away from the North, and President Lincoln couldn't make slave owners living in the Confederate states of America obey the Emancipation Proclamation. After the Civil War ended and the South became part of the United States again, the South had to obey Lincoln.
The Emancipation Proclamation didn't include slaves in the border states and in some southern areas under the North's control, such as Tennessee and parts of Virginia and Louisiana. Although no slaves were actually freed by the Emancipation Proclamation in 1863, it did lead to the 13th Amendment to the Constitution. The 13th Amendment became a law on December 18, 1865, and ended slavery in all parts of the United States.""
Read more Here
“The E. P. only had effect in the North since the Southern States had succeeded.”
What? This makes no sense. Unless by “the North” you mean whatever previously rebellious territory had been conquered by the North.
“So, I think your premise is correct - he only freed the slaves in the North.”
Again, unless you have an idiosyncratic operational definition of “the North,” no, he didn’t. He was expressly forbidden by Dred Scott from doing so.