Serious but short thread because I don't wanna put too much effort into it, but see it as an advice from someone who spent a lot of time on Smogon, and who played old gens a lot with decent results in the past.
Old gens are boring and are stuck in their state after they are no longer the current OU gen, sure SPL and Wcop can bring some fresh air with new sets because a lot of good players still like to play them (Amaranth in rby, Finch/SW in bw, Excal in dpp, Roro in adv etc), but we barely have any suspect test, especially in RBY, GSC and ADV so they don't change too much
Even BW is almost the same as it was some years ago after you banned Excadrill
I know that what you're trying to do is making those tiers as competitive as possible, but we all know pokèmon isn't really thre most competitive game to begin with, so may as well try some new mons in those tiers to change them a bit during time. Tradebacks in RBY should've been tested a long time ago, maybe you can test ADV without Spikes and/or Dugtrio and Magneton, BW with Genesect, TornadusT or maybe with Venusaur. I'm not proposing anything in particular, but I just think that old gens need to be revived a bit.
A big problem also is that aside from SPL/Classic there isn't much about them (those unofficial circuits are nice, but I still dont value them too much, in the past ppl won tours from the circuit and still didn't get bought in SPL), but most important old gens ladders are dead. You may want to create some Old gens official tour like OLT where you need ladder to qualify, but also completely changing classic's "qualifying" stage (single elimination in cups isn't the greatest) with a qualifying stage through ladder
Old gens are boring and are stuck in their state after they are no longer the current OU gen, sure SPL and Wcop can bring some fresh air with new sets because a lot of good players still like to play them (Amaranth in rby, Finch/SW in bw, Excal in dpp, Roro in adv etc), but we barely have any suspect test, especially in RBY, GSC and ADV so they don't change too much
Even BW is almost the same as it was some years ago after you banned Excadrill
I know that what you're trying to do is making those tiers as competitive as possible, but we all know pokèmon isn't really thre most competitive game to begin with, so may as well try some new mons in those tiers to change them a bit during time. Tradebacks in RBY should've been tested a long time ago, maybe you can test ADV without Spikes and/or Dugtrio and Magneton, BW with Genesect, TornadusT or maybe with Venusaur. I'm not proposing anything in particular, but I just think that old gens need to be revived a bit.
A big problem also is that aside from SPL/Classic there isn't much about them (those unofficial circuits are nice, but I still dont value them too much, in the past ppl won tours from the circuit and still didn't get bought in SPL), but most important old gens ladders are dead. You may want to create some Old gens official tour like OLT where you need ladder to qualify, but also completely changing classic's "qualifying" stage (single elimination in cups isn't the greatest) with a qualifying stage through ladder