It will be too early to say that this is a start of bull rally of altcoins as we know after a huge down trend the market just has picked an up trend from the last few days so this fresh up trend of market needs to be mature if the market could able to keep its current momentum till next few days then we may expect bull rally of some quality altcoins.
Market could really be having these kind of trend.
1. Bullish
2. Bearish
3. Accumulation Phase
4. Sideways
So therefore, expect that there would be always a rally whether in talks of bitcoin or altcoin it would really be just the same
but the fact that Bitcoin is the main setter of market trend then its not surprising.