There is no reason why the timelines need to merge. I do agree with your child timeline placements, except for MC. I am one of those people that puts MC first. We don't need to debate why or why not it goes there as that has been done a million times on a million different threads here, it's just my personal placement of the game. Here is what I see wrong with your idea of the timeline and how you portray it.
1. The merge. Why do you have a merge? Merges make absolutely no sense. I understand that some of the older games are hard to place but that's not because Nintendo has thrown a secret merge into the timeline, it's because those games were made before a tiemline was being pursued. A marge makes much more problems then it fixes. You're suggesting that two completely different dimensions (adult timeline and child timeline) somehow become one. That would mean that one dimension's Link and Zelda and any other duplicates would have to disappear to make one person. There can only be one true history and one true Link and one true Zelda and so on and so forth. It's way too messy of an idea for Nintendo to successfully pull off.
2. Based on the original intent of ALTTP and the Miyamoto Order, LoZ/AoL should be on the same timeline as ALTTP. I don't care what side of the timeline you put them on, I put them on the child timeline, but they should be on the same timeline as the whole point of ALTTP was to give you history of the characters and the enemy in LoZ/AoL. Makes no sense for ALTTP to be giving you the history of a monster that doesn't even exist in the same dimension as ALTTP.
3. As for your portrayal of the timeline, be careful how you word your thoughts. In many aspects of your posts you sound as if there is no way you can be wrong and there were even a couple remarks that sounded a little condescending. You have a THEORY. It's not fact until Aonuma/Miyamoto says it is. Personally I don't give a rat's behind what Miyamoto says. Aonuma is the man with the plan.
As for the whole thing you said about how some games reference things from other timelines means that there is a merge, let me shed some light on that for you.
MM takes place on the child timeline. The only reason Termina doesn't get destroyed is because Link was there to save the day. Without Link there, Termina would have been destroyed. I think it's safe to say that Termina was probably destroyed on the adult timeline, yet in WW, on Phantom Ganon's sword, there is Hylian writing that says "Zubora Gabora" which are the names of the blacksmiths in MM that are from Termina. Does this mean that we should put WW on the child timeline or is it just an easter egg? Let me give you a hint, it's an easter egg. Just because one game on one timeline references a game on the other timeline does not mean that there is a merge. Be careful how you weigh your evidence.
Good luck. Regardless of any disputes SoJ and I have had in the past, he is a good theorist and he knows what he's talking about. You can have whatever credentials you want but so far I'm not convinced that you're as good of a theorist as you think you are. I don't think you will be turning anyone here onto the idea of a merged timeline, but best of luck if that's the path you're going to take.
