[quote=@BCTheEntity]
There is no good reason to assume the Android will possess the capacity to enter the tournament with any expectation of victory in the short time period available to it, even if one assumes that it manages to find out that there's even a tournament going on before then. It's been implied that much of its story arc will take place on Earth regardless, at least early on, but either way, entering the tournament currently seems to be far out of reach for it.

The only wild card I can think of is Harkon, who may be compelled to enter the tournament by the voice in his head that was previously Limac. However, since it has not yet been suggested by Halvtand that he will enter the tournament at any point, I cannot assume he will do so; thus, I shall assume that he won't for the time being, and even if he does, he certainly isn't affiliated with the Arcosians at this time.
[/quote]

I'd say you are entirely correct. The android will travel across earth for the moment, get in small fights with NPCs until it's viable to get a PC-PC encounter. Throwing this character into the tournament would pretty much be like pressing delete. First fight and he's garbage, alone on an alien world literally light years away from spare parts. 
Harkon could be pointed toward the tournament either by the voice or by some external means. Example: Harkon still has friends amongst the saiyans of CC from the galactic war, if one or more of them should go to the tournament they might be able to persuade Harkon to accompany them, at least it would take him far away from the "mad scientists" that held him captive. I can work with this in mind if we need more player characters in the tournament.