The coin needs a better (more efficient) design than Bitcoin on the way miners aggregate and relay data.
Although, broadcast (as e.g. radio) is a marvelously efficient way to distribute the data. Satellite seems like a no-brainer.
Good idea.
I also thought of another I think better solution so that block periods don't need to slowdown to the least common denominator of relaying delays. We provide a protocol for coins to be spent from a chain to another chain, i.e. the coin retires in the source chain and is born in the destination.
So then multiple chains can spawn and operate in different segments of the internet as necessary in a decentralized free market.
There are some caveats and details which I thought about but won't enumerate at the moment.