It seems this set is pretty much just Megalo Cannon + the Kyurem and Blastoise deck. I'm certain there are no cards from EX Battle Boost or from the Mewtwo vs Genesect deck. It also seems to have no cards from the Exciting Battles-something decks.
The list:
#1-11 - all the Grass cards from Megalo Cannon plus the non-Plasma Genesect promo that will be in the theme deck. After that, assuming that they correctly placed Froslass after Glalie, and that they included Blastoise even with it being a reprint, it goes like this:
#12-13 - Larvesta & Volcarona - only Fire-types in the set...
#14-22 - Squirtle line, Lapras, Remoraid line, Suicune, Snorunt and Glalie - even if this Blastoise is not in the set because it's a reprint and for some reason they decide to include the promo Magikarp instead, this is still true...
#23 - Froslass (confirmed)
#24-34 - Relicanth, Abomasnow line, Tirtouga line, Ducklett (from the Kyurem deck), Kyurem-EX, Tynamo line, and Drifloon
#35 - Drifblim (confirmed)
#36-59 - If they also include the Machamp promo (which I belive they will because it's a similar case to that of Froslass), then that card plus all the cards from Uxie to Aggron from Megalo Cannon fit in this space (they may include an old Aron promo instead but I think Machamp is more likely to be in the set).
#60 - Jirachi-EX (confirmed)
#61-66 - This is where it gets tricky... Escavalier is most likely #61; Dialga-EX and Palkia-EX are probably right before Axew, being numbers 65 and 66. So, there's three spots. Even if they include the Flygon promo and the Salamence promo, there's still one spot to fill and unless it's Durant from the EEB decks, I have no ideia what goes here... Unless they put exact reprints of Bagon and Shelgon from Dragon Vault because they were re-released as promos together with the Salamence in Japan... As lame and stupid as that sounds, knowing TPCi, it's possible...
#67-69 - Axew line (confirmed)
#70-73 - Druddigon, Kangaskhan, Porygon and Porygon2
#74 - Porygon-Z (confirmed)
#75-77 - Teddiursa line and Chatot. Pokémon cards stop here I believe. There are no non-reprint promos to include...
#78-90 - Trainers. Iris is confirmed as #81 but I can't predict exactly the specific order of the others... Caitlin, Root Fossil Lileep, Cover Fossil and Plume Fossil will keep the same name. I'm not sure about name changes on Silver Bangle, Silver Mirror and Reversal Trigger, the last one is more likely to have its name changed than the other two, if at all. Nonetheless, I guess they will reprint some trainers that come in the Kyurem + Blastoise deck since the space for trainers cards is much bigger than the number of Trainers in Megalo Cannon...
#91 - Plasma Energy for sure...
#92-95 - G Booster (confirmed), G Scope, Master Ball and Scope Up Cyclone, the ACE Specs...
#96-101 - Full Arts
#102-105 - shinies.
I believe the plasma Genesect promo that wasn't included will be released in a product like the Keldeo/Mewtwo/Deoxys Box, with a Genesect figure and a Genesect-EX jumbo card.