The listings state it will not come with a trailer and it is an exclusive toy for the 2018 Wonder Festival. Of course, as with most Japanese exclusives, it will still be available at online retailers, just at a higher cost. The toy will sell at around the $150 USD price point, from what the listings show.
This deco is in reference to the Golden Lagoon episode of the G1 cartoon, but is also simply a premium deco we have seen in the past for exclusives and lucky draw figures.
The sites currently listing this toy are a seller on Taobao and Australian site Toybot Importz.
Below is an image of an unofficial version with similar deco, it is not certain this toy will look exactly like this.



