You really are quite well versed in Vocabulary...How? and Why do you use it?
Well is you want a deep and complex Pokemon Plot read some Pokemon Special (Adventures) manga:
http://www.mangafox.com/page/manga/series/363/
Yes the First RGB Arc is very slow and stereotypically "Journey-like" but it has it's moments too. We usually consider the GSC and RS arcs to be the best and in-depth. But still read all of it to truly appreciate the plot. ^_^
Also yes the current anime will probably not go much darker than it is due to the Kiddy audience targeting. The only "dark" episode was when Satoshi was possesed in the Battle Frontier saga (Which that particular episode I loved and watched RAW XD) and those banned episodes first season (Ep.18 anyone?)
Well I'll add more But I won't be on until school starts or when I can get on the 'Net. ^_^ Thanks...