2019 had been not so good for altcoins as this year has given us number scam projects and as a result, some of the genuine projects have been failed wherein people just pretended any projects with ICO as a scam. I think 2020 will bring new hopes and some good project in the market by considering 2019 as a learning area.
Highly unlikely. Sure the would be some unicorns who outperform the market. My forecast is that BTC is gonna dominate the market.