Given the year that 2017 has been, what are your predictions for 2018 for cryptos?
Since crypto's are well known for this year and it has been exposed in a positive way I predict that it's market cap can be doubled on 2018.
will Bitcoin continue to rise?
Without a doubt and hesitations, yes it will!

I think governments will be involved more in cryptos in 2018, more regulation maybe?
They will put themselves involve to crypto since it has high value and very profitable. It's either they will regulate or buy or will start their own crypto which will mostly going to fail.
The problem with all of the plans before now, is that to redistribute the money after its already been distributed is nearly impossible. The people with that money rightfully resist its redistribution. Thats the missed opportunity of all of todays cryptocurrencies. Cryptocurrencies are creating new money. And unlike credit markets, which only pretend to expand the money supply, by lending it out 10x with fractional reserve lending, cryptocurrencies are literally printing money. And they arent loaning it to people, theyre giving it to them for their service to the network.