Fundamenta Aspect
Ethereum Upgrade Delays 'Difficulty Bomb', more on my blog as I cannot paste the link here.
Technical Aspect
Ethereum is establishing fresh support above the $3,500 level, and if buyers continue to break over the crucial resistance level of $4,000, the price may begin a new rally.
If buyers continue to sway the market, the nearest obstacle they will encounter is at the $4,000-$4,150 level. The price's first significant resistance level is at $3,950, which, if broken, might signal the commencement of a fresh uptrend in the near term.
Contrary to this assumption, if buyers can not overcome the $4,000 barrier, the downtrend may continue. In this case, the closest price support will be at $3,500 - $3550.