The new stadium is only 2.5 miles from york street, really not that far. Hopefully there will be good buses on match days from town centre.
However it's very rare a new stadium gets built in town centre these days and out of town is far more practical. It appeared that DN spent a lot of time planning options for a location for the new ground, so I think we can be happy that the best overall location was selected. I think we also need to bare in mind that the new stadium is being partly funded by the other developments at the Quadrant, another reason why this location was the most feasible, without the enabling developments there wouldn't be the funds for the stadium.
Usually when a club moves stadium it's to something bigger and better. The capacity of the new stadium is slightly lower than York Street, however we don't really need bigger. In all the time I've been going to York Street the only matches when the stadiums was close to/at capacity were the friendlies and Man Utd and Liverpool, League Cup game against Fulham, First Match in Football league against Bournemouth, Matches against Lincoln in Football League, match v Nuneaton when tickets were free after being called off at half time on new years day in 2002. Not been close to full since we got relegated. So we don't need a bigger ground. York Street is known as being one of the best non league grounds with good character, let's hope the new ground has a bit of character of it's own and doesn't feel like a downgrade.
What we must remember though is staying at York Street isn't viable, it's simply not affordable due to lack of income/rent, we don't own it and owners want to sell it so they could if they wanted to have kicked us out before now and left us homeless. The new ground should see us being more financial stable and have a club for the long term and hopefully soon playing at the level above.