KFAN Rube Chat posts a link to a pic that could be a sketch of the new court.
Update:
The pic was also posted on ESPN:
Six teams have new court designs: the Hornets (additional info here), Timberwolves, Raptors, Thunder, Bobcats, and Heat (sorry, no photo for that one).
The Timberwolves’ new Target Center court is in place, just in time for Wednesday night’s season opener against Sacramento.

Workmen finished installing it today and it has some distinctive features, with dark wood between the three-point lines and light wood inside them.
A large Wolves head (no trees) dominates center court, with the team’s new secondary howling wolf logo appearing on each end.