The chart above is a chart of ETH/BTC over the past six years, combining the 100-week moving average and the RSI index at key levels.
We can see some interesting patterns here, which are as follows - The MA key level is the 100-week moving average, which has been facing resistance or support, but is currently above the price and the price is on its way to break through resistance. - From a broad view, the current price is trying to bottom out and bounce back in a rounded parabolic pattern, similar to what we saw in late 2019 - Currently, the RSI index has broken above and supported the downtrend line of the past year or more and is moving higher, as it did in the second half of 2019.
Based on the above pattern, the ETH/BTC price is likely to rise (= ETH price relative to BTC price will rise more in the future) unless something weird happens.