I guess no one will know about that since there is uncertainty in the crypto market. Crypto market can go up and down anytime without you can think but we can guess when the bear market will comes again. Maybe in the middle of this year or the end of this year or even in the next year so with those uncertainty, you must be prepare for that and take as much profit as you can. That will help you to buy back when the bear market comes so you can buy many coins including Bitcoin in a low price.

For the coin list you share in the first page, I guess some coins can increase although I am not so sure about that. But I think XRP, TRX, ADA, DOT could increase but this is not an financial advice and only my guess which is not guarantee to increase.

If you can sell your altcoin at the highest price, you can invest in Bitcoin but you should check how high Bitcoin price at that time. If you think that the price still too high for you, you can wait for a while until the price gets a correction so you can buy at a low price.