So let me understand here. Because of the fact that Kanto got a Gen. III revisit, and Johto a Gen, IV revisit, you are considering Hoenn and Kanto to occur during the same time period because the Pokémon from Hoenn and Sinnoh exist in the later Johto? What about Sinnoh not appearing in the original Gen. II? The remake came after D/P/P and thus includes Sinnoh; there is no concrete timeline either way regarding these games.
If a Hoenn remake later appears in Generation VI (tie-in to the topic at hand here), then it can be assumed it all took place after the events of the prior five generations; however, then Kanto would have to be brought forward at the same time to maintain trading between those two regions in the later generation. That won't happen.
In other words, we can't plot a proper timeline simply because of these remakes. The ONLY way to do it properly is assume someone lived an identical adventure five years later.
Cyclone
Do you even read what is in front of you? MOST COMMONLY ACCEPTED CANON LINEAGE.
https://bulbapedia.bulbagarden.net/wiki/History_of_the_Pokémon_world
There is info in all 5 generations of games that hint to a proper story line. NEVER ONCE did I say its based on Pokedex alone. YOU said that.
There ARE Sinnoh Pokemon in HG/SS. Hoenn and Kanto have info in them that put them around the same time line. The remakes are in the same timeline as the originals. Sinnoh has an opening sequence that puts it at the same time as Johto which also has hints that its after both Kanto and Hoenn storylines. Unova has hints that its after all four previous generations. The games have set up their own storyline. Mewtwo getting a new form in X and Y shows its after the events of Gen 1 and by association all the other generations that can be linked to it.
Read what is posted instead of jumping to conclusions and putting your foot in your mouth.
Gen 6 is most likely after all current past generation games because of Mewtwo.
Red (Character) in Red/Green/Blue/Yellow is the SAME Red in FR/LG. Blue (Rival) is the same Blue in the generation 1 games as well as the Gen 3 remakes.
Gold (Character) is the same Male character in G/S/C as Ethan in HG/SS. Silver is the same rival in all 5 games.
Only Major difference is the female companion who changes. She is added into FR/LG to give girls an alternate choice. If you were a girl playing the original games then Red was Leaf in the original games as the player's gender was more the defining factor for the character they pretended to be. Lyra and Crystal are interchangeable characters who have very similar looks. Lyra simply replaced Crystal if they are not actually the same character just doing the same thing Gold/Ethan did.
Nothing in Gen 6 has even hinted at real remake info. Mewtwo and Sylveon just lean more towards a Gen 1 rehash rather than a Gen 3 rehash. That is the ONLY reason Remakes were brought up.
Let's take the time line discussion to PM if you want to continue.
EDIT: I wanna chime in on next possible release...I hope its a new Gen 6 native as well. We need more Gen 6 hype, no more related to the past stuff for now.