Probably will not be an AEGIS vessel. Displacement goes up as does the cost.
Probabaly will contain cooperative engagement capabilities so that a Burke can perform the coop if necessary...but these will be more like the Perrys. Good, all-round multi-purpose combatants, able to operate effectively as picket escorts for CSG or Phibrons, able to perform well in a SAG able to support LCS vessels in the littorals, or able to do stand-alone assignments in medium risk areas.
I had a chance to spend some time on HMAS PERTH which is fitted with the new CEAFAR/CEAMOUNT radars. They don’t weigh much but the performance is outstanding. Better yet it is very easily scalled up (they are modular so just add more tiles).