Queen Alicia was formerly the queen of Acorn and wife to Maximillian Acorn, in the original Archie Sonic comntinuities. Howver she was hijacked by Ken Penders to be used for goodness knows what in his Lara Su chronicles.
In his twitter feed, he probably hinted that she was going to be a villain, like his original draft of the mini-Sally series. Therefore it is not really known if this is true or not, given that he has been flip-flopping around stuff such as Rotor the walrus becoming a different character.
In the new Archie Comic continuity, she has been replaced with a different version.