Okay so I will try to increase my evidence of Munna not being a baby drowzee..
Chingling is the contradiction to how I last posted my evidence. But I still stand by the looking like the evolution. For example;
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As you can see Chingling is basically the Chimecho's body, just with a shorter tail and no levitation; now heres munna and drowzee.
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I personally see absolutely no connection to the design of these two pokemon, infact it relates more to phanpy than it does to drowzee imo.
Munna is a dream eating pokemon. But yet both Hypno and Drowzee are Hypnosis pokemon, I know this is a weak point but why would it change, another key point is that both hypo and drowzee's japanese names are to do with sleeping, munna isn't..
On another point; Munna is levitating or floating, now I know that it learns the new move Telekinesis, BUT the description of that move is to make your foes levitate; not your own pokemon. Surely if it were to evolve into drowzee it wouldn't loose the capabilities to float, because I for one have never seen a drowzee float and it wouldn't suddenly be able to do in this gen.
Okay so this is my evidence. Feel free to pull me up on stuff :o
It's a coincidence, and that's a very generic description. They wouldn't have hinted that long ago about a very unspectacular Pokemon....by that I mean, Munna doesn't seem like it''ll have any big role, just another Pokemon.
And use some common sense, it is not a Drowzee evo. It's merely a Pokemon that's loosely based on the same idea. It's very well established by now that baby Pokemon look very similar to their evolutions. They are not going to make this exceptions.
Why would ANYONE want a Drowzee evolution? That's so random, pre-evolutions are so stupid. I can't wait to see Munna's evolutions, I'm definitely using it on my team :).
I'll be using it on my team for sure too. XD aslong as it doesn't evolve into drowzee T__T