It is too early to decide if it is a bull run season but if btc rise above 35k$ maybe that was the start of the bull run season again, for now we still have yo wait a little more or we can still buy some more altcoin as a preparation of the possible bull run season just invest an amount that we can afford to loss.
Now we are in April and Bitcoin is still $ 27K and despite having touched the price of $ 28K on its way. For me this is a good accumulation step before moving to a higher price, but I estimate the price will penetrate the $ 30k. There is no accurate definition of the bull or bear season and maybe we will experience unexpected conditions, rather than considering this condition, it is better to take the opportunity to collect bitcoin at this time.
If it is true that the four -year -old cycle will run according to the accumulation of the previous year, it is likely that next year we will be in the cycle, so we will get the maximum profit. So far the market conditions have become more positive and close to price improvements from the previous year.