It looks like Apple has been doing some pruning. The 16 screws in the previous iPad Mini's LCD shield plate must have been deemed excessive; we're now down to seven screws.
"Waste not, want not." The same shields appear to be popped into the new Minis—they're just missing some (now obsolete) screw holes.
These LCD and digitizer cable connectors aren't fooling anybody—tweeze away that bracket and pop off the connectors, and the LCD is home free.