Let's see the historical data: - First halving, on November 2012 : Bitcoin increased from $11 to $1,100 in 2013 (one year later)
- Second halving, on July 2016 : Bitcoin increased from $600 to $20,000 in 2017 (one year later)
- Third halving, on May 2020 : Bitcoin increased from $6,000-$8,000 to
$??? in 2021 (one year later)
Based on historical data, the maximum rate of BTC in 2021 (not in 2020) should be more than $20,000 (ATH in the second halving).
However, there is no guarantee, mate.

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Halving data got from:
https://hackernoon.com/will-bitcoin-skyrocket-after-the-2020-halving-like-in-2016-b61c6568debb We will see as well how big the hype will be. In 2017 even morning show celebrities were overreacting about Bitcoin.