I don't think Sony will rename it to Sony Sports.. Sony has a tendency to keep 3 letter name to all of its channels. Like Six, Max, Rox, Pix, Sab, Yay, Mix, Wah, Pal
So my assumption is it will be Sony Six 1,2,3,4. Sony already has numbering in its channels. As we already have Max & Max 2.
Also chances are there they keep the word TEN itself. As they have kept the same name for AXN even without changing the logo. But it will be good if they change it to Six 1 2 3 4.
Sony Six -> Sony Six
Sony Six HD -> Sony Six HD
Ten 1 -> Sony Six 2
Ten 1 HD -> Sony Six HD 2
Ten 2 -> Sony Six 3
Ten Golf HD -> Sony Six HD 3
Ten 3 -> Sony Six 4
May be in future they will launch Six HD 4
Sony ESPN & Sony ESPN HD will be a stand alone Sports Channel as its a Joint Venture between SONY & ESPN.