I'm pretty sure that XRP will repeat 2017 bull run, but this is not a invest advice. In 2017, XRP price only bull run in short period of time and in that time when 99% other coins going down in a small downtrend. So holding XRP and holders must not tough those coin in 'Altcoin season' because XRP will make it own 'XRP season'. 
In 2017, all altcoins went up together with BTC, XRP was one of the fastest growing altcoins but until now it has also become the fastest collapsed altcoin. I am concerned about the future of XRP as well as the XRP holder, its price is very difficult to recover because there are not too many investors interested in it right now, and there is always a large amount of XRP sold every month and every quarter, so raising prices is almost impossible