The videos from David's Philippines album Forevermore (two, possibly 3 videos) were filmed in the Philippines on the one day David had available for that. It was Valentines Day and he also did a photoshoot at the same location that day (the house of his hair stylist Pina from the Nandito Ako miniseries), and that evening he guested at the Alcasid's holiday concert. He had about 5 weeks in the Philippines (1/2 of the 10 weeks before his 2-year Mormon mission) and at least 3 weeks were spent filming the 25 episodes of Nandito Ako. The two unexpected additions were the Bench sponsorship w/ its own mall shows and signings and the Forevermore album which was recorded in 4 days. I think it's amazing that in 10 weeks, besides Nandito Ako, he managed to make 2 albums plus videos to leave for his fans while we wait for him. The US album BEGIN. will be released Aug 7 (inspirational covers, mostly classic pop w/ one hymn and one original). He worked on BEGIN through the day before his mission started.
Edit - I think I'll Never Go was chosen to symbolize David leaving on his mission. He left his musical instruments and he left the door open. He'll be back.
Re the 3rd video - it will be Rainbow (as we could have guessed from the music-minus-one bonus tracks on the CD: Forevermore, I'll Never Go, Rainbow)