So pleased they're gathering attention / momentum - much deserved.
Not sure there'll be anything that could conventionally be described as a single release, but if there was, it should surely be...
May - Summer Of '99 (perhaps with a slightly beefed up mix) to capitalise on actual summer and because this song has 'festivals season anthem' written all over it.
September - No Regrets with that powerhouse chorus and a lightly autumnal feel.
November - Love Me Hard as the old school, classic Sugababes ballad primed for pre-Xmas listening a-la Too Lost In You.
February - Love In Stereo to lead a deluxe deluxe of the deluxe edition of the album, featuring 60 bonus tracks.
April - new album.
Failing that, just Summer Of '99 in May with a brand new single in September leading a new album in November.