Monday, July 27, 2020 
ONF will be making their comeback on August 10.
This is ONF’s first comeback in 10 months since the release of their 4th mini-album ‘Go Live’ last October. On July 28 at midnight KST, they released a cowboy theme timeline teaser for 'Spin-Off'. You can see two members facing off with guns on a train.
The 'Spin-Off' Original Cover will be released on July 29 and more teasers will be unveiled until the eventual release on August 10. Stay tuned for more updates.
0
highly doubt it's a 'cowboy' theme. they are most probably going to continue their mv storyline which is a sci-fi android concept