According to Jesse Pollak's recent tweet, he announced a temporary leave for March due to personal reasons. Pollak, a significant contributor to Ethereum's development, mentioned the introduction of a 'new builder', which could imply the onboarding of a new developer or a new project. This temporary absence might affect Ethereum's short-term development roadmap as Pollak often plays a crucial role in strategic decision-making and project management. Traders should monitor Ethereum's project updates closely during this period to assess any potential delays or changes in project timelines. [Source: Twitter/Jesse Pollak]