Seibertron.com complied a list of all the answers to the questions the Hasbro design team were asked at SDCC: https://www.seibertron.com/transform...at-sdcc/47081/

-Legacy Wave 4/Breakdown will be shown at Pulsecon
-Legacy Wave 4/Breakdown are scheduled to come out next year
-Evan mentioned that Menasor's lack of Scramble City compatibility/limbs being dedicated to just Menasor has been well-received and they are keeping that in mind for future potential combiners
-No continuity is off the table for Legacy, Cyberverse is an option
-Animated was given a flat-out confirmation by Evan, Animated characters/designs WILL be in Legacy, the theory of those characters/designs being held up by Cartoon Network rights is incorrect
-Evan cited Animated Lockdown, Ratchet, and Prime as characters/designs he specifically would like to work on
-Legacy Animated figures WILL be G1-ified, HOWEVER the team has also heard the feedback on Arcee/Bulkhead/Knock Out and are working to find a better G1-ification balance
-Titans and Selects are both still planned to continue release, called out the theory of Selects ending specifically as incorrect
-Hasbro is considering 2022 and 2023 both to be the Armada anniversary due to the show's release date in Japan (which probably also explains "RiD 2000 Universe")
-Armada Prime "may happen" for the anniversary, unlikely to be the unreleased Takara-initiated one shown years back but may borrow from it if happening
-Cyber Planet Keys and Cheetor's gut gun both being thought about in terms of potential weapon/accessory packs
-They KNOW people want Tidal Wave
-Minicons are something they're intending to figure out "once they move more fully into Armada"
-Wider release/more allotments of Velocitron Cosmos and his in-store availability are up to Walmart, Pulse cannot restock (sounds familiar)
-Next Haslab is being worked on but has no associated dates yet
-No version of Optimus Prime will EVER be a Haslab (when asked about Armada Prime)
-When asked about a new Cybertron OP & Wing Saber: "it would be totally doable to make a new Wing Saber connect to Siege GUOP" (implying Wing Saber is on the table but Optimus is considered done)
-More Titans from Cybertron are possible albeit daunting due to number (Starscream, Primus, Quickmix, & Menasor all mentioned)
-Evan wants to incorporate Powerlinx into Armada/Energon updates
-Mark and Evan talk about making figures of the 13 Primes "all the time", mentioned The Fallen's tank mode
-As far as Evan knows, Legacy is planned to go for 3 years and is a trilogy (?)
-More non-G1 updates can be expected even if/when Legacy ends
-Evan wants to make Beast Machines Vehicons
-Most obscure characters Evan wants to do in Legacy: Velocity, Javelin, Mistress of Flame, Camiens
-Interest in bringing Fan Votes back
-Expansion into non-G1 was due to designer interest, characters needing updates, and people being sick of the same characters
-Positive reaction to being asked about Omnibots, vague "anything is possible" response given
-More Minibots "will make it in eventually"
-Mention of potential Coneheads rerelease in Legacy
-Evan mentioned "having a few more beasts to get through"

...and on top of all that semi-official stuff, JTPrime has said as of yesterday that Breakdown and Twincast's EAN numbers have been replaced with new ones that change what we thought the next few waves would be, indicating that Wave 4 will now include Needlenose, "Junkion 1", Hot Shot, Tarn, & Leo Prime (at least, don't think we know Leaders-per-specific-wave yet for 2023) in addition to Breakdown, while Twincast has been pushed back to the wave containing Metalhawk and the Wheeljack & Cheetor repacks have been possibly scrapped.