Well...I'm a HUGE Queen fan, since I was a child, and I don't fee guilty at all...Freddie will never be replaced! He's unique!
Freddie would like to see someone like Mika following his steps, becoming a successful performer, composer and singer! Not because he's his fan or anything, but because he's young and very talented, like Freddie was in the beginning of his career! Probably he would "see" himself in Mika, because of his extravagant and unusual style, who knows?