UK iTunes has uploaded the lengths of "18 Months" (Deluxe Edition) as well as some more snippets of the songs.
1. The track 'Here 2 China' is labeled there as explicit.
2. '18 Months (Continuous Mix)' will have a length of 52:54.
3. The 'Let's Go (feat. Ne-Yo)' video is not going to be the one promoted on VEVO. It has a length of 7:26, so it's going to be the remix cut: