If we think that the popularity of e-sports games has increased and gamblers have started to make more bets in this area, yes, I think that such bets will be more popular in the future. As an example, we can see that there are no sports bets due to the cessation of sports competitions and therefore many gamblers are turning to alternative areas such as e-sports. In addition, if I think that competitions such as e-sports carry less risk during today's process, I think that the rate of preference will increase over time and even will be preferred more than normal bets, although there is a low probability.
We don't need to think about it, it's a fact! There is one nice article about egaming :
"The eSports industry has seen tremendous growth over the years both in terms of viewership and revenue. The increasing viewership is what mainly contributed to the revenue growth – and it’s not just because those viewers are generating revenue. Brands, seeing the potential of reaching a large and engaged audience, are investing in eSports marketing both directly and indirectly. That’s what has mainly contributed to the rapid revenue growth in the industry."
"By 2021, Newzoo predicts that the annual growth rate will be approximately 14%. They also predict that the number of casual viewers will grow to 307 million. And that there will be 250 million eSports enthusiasts, making the total audience 557 million."
Source:
https://influencermarketinghub.com/growth-of-esports-stats/#:~:text=eSports%20Viewership%20is%20Growing,-Since%202016%2C%20there&text=Between%202016%20and%202017%2C%20there,the%20total%20audience%20335%20million.Kids are growing, and they know more about gaming then about sports. Asian countries are the leaders, there you have a situation where esport is more popular than classical sport (if I can say it like that), when I watch some LoL games from there I think of it as higher levels, for example my country is far from that.
And with these numbers from this article we can say that esports will become more popular than normal sports betting. With this peace it can happen in next 20 years!