TLDR Optimism (OP) price is predicted to rise above $4.30 in the coming weeks. Ethereum (ETH) to continue its rally and soar above $3,100 as it approaches network upgrade. Rebel The post Optimism (OP) Gains As Ethereum Climbs To 21-Month Peak; Experts Predict Exciting Price Action On The Rebel Satoshi ($RBLZ) Presale appeared first on BitcoinWorld .