What do you guys think will happen in the coming days to ethereum, given the metropolis upgrade? Yes, I'm wondering about what will happen to the PRICE, and also if a chain split will happen, and if Constantinople might happen shortly after Byzantium, or if it will happen in 2018...

Here's a summary of metropolis:
Metropolis is the third of four planned upgrades for ethereum upgrade, and is being done in two parts:
Byzantium - started on Sept 18th, 2017 on test networks (block 1.7m) and go live on Oct 9th
Update: delayed to Oct 17th
Constantinople - tentatively some time in 2018

upgrades introduced in Byzantium:
 - foundations for zero-knowledge proofs
 - abstractions
 - simplified programming in solidity
 - mining difficulty time bomb