You know, it has struck me recently that of all the Gen 1 Pokemon that have been left untouched by the generation gimmicks in recent years, Dragonite really sticks out. It's really fascinating that so many Gen 1 Pokemon have received Mega Evolutions, signature Z-Moves, regional forms, or Gigantamax forms, yet Dragonite has consistently remained untouched throughout it all.
I mean let's look at all of these and look at which Gen 1 Pokemon got which:
Mega Evolution: Venusaur, Charizard (two of them no less!), Blastoise, Beedrill, Pidgeot, Alakazam, Gengar, Slowbro, Kangaskhan, Pinsir, Gyarados, Aerodactyl, Mewtwo (also two)
Signature Z Move: Pikachu, Raichu (Alolan), Eevee, Snorlax, Mew
Regional Form: Rattata line, Raichu, Sandshrew line, Vulpix line, Diglett line, Meowth line (both Alolan AND Galarian, no less), Geodude line, Grimer line, Weezing, Exeggutor, Marowak, Ponyta line, Slowpoke line, Farfetch'd, Mr. Mime, Articuno, Zapdos, Moltres
Gigatamax: Venusaur, Charizard, Blastoise, Butterfree, Pikachu, Meowth, Machamp, Gengar, Kingler, Lapras, Eevee, Snorlax
When you look at the above lists, practically all of the popular/iconic Gen 1 Pokemon are covered and have obtained at least one of those over the years.
Yet Dragonite, despite being an iconic and popular Pokemon, has not received any of them. Game Freak is so intent on hard-promoting Gen 1 by giving the iconic Gen 1 Pokemon all the boons, but despite Dragonite being the first pseudo-legendary and an iconic Pokemon, it has consistently been left untouched to this day. Even back in the days of Mega Evolutions, it didn't get a Mega, yet Tyranitar and Garchomp in X and Y got (largely unnecessary) Mega Evolutions despite being from Gen 2 and Gen 4, respectively. Salamence and Metagross even got them in ORAS, and Kommo-o got a Z-Move in USUM.
I really wonder why Dragonite has been left so untouched as is. Not that I mind, as compared to the rest battle wise it's already a near perfect Pokemon as is, but it's so interesting that Dragonite specifically has been left untouched for the past three generations straight. It straight up wasn't even in Sword and Shield until the Crown Tundra too.