I rediscovering my love for pokemon again, I want to watch the new pokemon series but I don't know where to actually start,I watched Pokémon, Pokémon: The Orange Island League, Pokémon: The Johto Journeys,Pokémon: Johto League Champions and a little bit of Pokémon: Advanced and that's all, then I'm seeing that they have like 200 episodes that I missed, should I just start from Pokemon Diamond and Pearl instead of looking at the others?
You are a fucking Pokemon Master sir
It's doesn't really matter. Pokemon is the Scooby-Doo of Anime so you can just read a synopsis and just into the latest episode.
start from when ash gets into a coma
It really doesn't matter my friend
i re-started watching it before battle frontier ended
The movies are always good. You can find subs of movie 4, 5, 6, 7, 8, 9, and 10, plus good dubs of 7, 8, 9, and 10. By good, I mean fairly unedited. Also, look at the TV special, Mewtwo Returns for the last time Giovanni actually acted like a villain. (There's one point where Giovanni crushes a wine glass with his bare hand. Now that is fucking manly.)
DP's a good starting off point, if you don't care to watch any of the other seasons. I wouldn't recommend watching all the eps though. There's a couple of subbed eps from DB, and pocketmonsters(another fansubbing group). Its a very long and dragged out season, but the upside is that there's a bunch of actual recurring characters who actually get plot development, including the Pokemon Gym Masters. Gardenia herself shows up for five or six eps, even after Ash won a gym badge from her. And she literally has a grass pokemon fetish getting wet at the sight of one. Its a better series than AG ever was, but not as good as Indigo I think.
Anyway, if you want a narrower choice, movie 1 with Mewtwo, movie five with Latias and Latios(but try to find a subbed version, since the dub cuts out the first ten minutes of the movie, out of a 60 minute movie, and the first ten minutes actually explains the plot of the movie.) Movie eight for an epic feudal battle between two Pokemon armies with pokemon donning amazing looking armor, and movie 10 for Darkrai doing a good impression of Batman, and the Mewtwo Returns TV special/OAV because its a sequel to the events of movie 1, and its has Team Rocket actually acting like the menacing villains they should be.
Image attached does not happen in the series.