I hope they don't include Fasttrack with a Titan Scorponok, because the only similar example from the existing Siege line is not a true Weaponizer:
https://tfwiki.net/wiki/File:WFC-Sie...-Countdown.jpg
If they made a similar toy, there wouldn't be all the added features that come with a seperate Weaponizer.

I never could make sense why ever other Titan got two or more buddies, but Scorponok only got one.
Metroplex has Scamper, Sixgun and Slammer.
Trypticon has Wipeout and Brunt.
Fortress Maximus has Cerebros and Brunt.
Scorponok got Fasttrack.