Kevin Svenson's prediction of Bitcoin reaching new all-time highs before the halving is based on its current upward trajectory and market sentiments. The potential for a post-halving sell-off is also highlighted, suggesting a volatile period for Bitcoin. This analysis, along with bullish sentiments from other market experts and institutional investments, supports a positive short-term impact on Bitcoin's price. However, the warning of a sell-off post-halving introduces uncertainty, hence the confidence score is not at the maximum.