The May Adventure toys from Japan are...
TAV15 - Lockdown (Animated DLX redeco?)
TAV16 - Bombshell (GEN Legends redeco?)
TAV17 - Shrapnel (GEN Legends redeco?)
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TED07 - Bumblebee (RID One-Step?)

We finally get a look at the colours to the Japanese Adventure Lockdown toy, as their non-RID toys in the line are most often major redecos... and this one is no different, sporting a mostly purple colour-scheme. It makes me think of Cyclonus on wheels.

The scan is from a Japanese Hobby magazine, which also has Bombshell to one side, which looks to be the same colours as the Hasbro version.
Shrapnel is also likely to be the same or similar to the Hasbro version, to match Bombshell.

And the TED One-Step Bumblebee isn't likely to be different to the Hasbro version. But images of these should start showing up soon, as the April wave is just about to hit stores in Japan and Asia.