I think it is a great idea to lower the court for basketball. That would allow better angles for watching the games, and make it feasible to do a center court game occasionally. Hope it doesn't become a standard practice though, because it would result in much worse seating for almost everyone.
If it were up to me, I would leave the court about where it is; in the middle of one side of the football field, to allow for a more intimate experience for the fans. Yes, get rid of the giant aisle surrounding courtside. If you lower the court, it should be possible to get the seats to flow smoothly from the permanent seating in the endzone all the way down to the court, on a more or less consistent angle. That would dramatically improve the look of the Dome for basketball, greatly heighten our home court advantage and result in a lot of nice premium type seats that might help address the problem of the lost seats when the bench seating is replaced.
The real opportunity is in how to handle the seating on the other side of the court from the permanent seating. In a perfect world, I would want to take the second level of seating out on that end zone of the Dome, and replace it with private boxes. Then have them permanently attached to the 100 section below them, so the whole 1st and second sections are movable, including the portion of the 200 level that is at a diagonal to the end zone, where the corner seating is. Maybe even include a portion of the lower portion of the third level. It should be possible with hydraulics and some advanced engineering concepts already in use at other facilities.
That would largely enclose the configuration for basketball, making for a really nice experience for the fans, and create a lot more premium private boxes and additional excellent seats for fans for basketball.
It will be interesting to see how it all shakes out.