Yes, there can be.

It is because Bitcoin’s fundamental protocol cannot be changed but new Cryptocurrencies made by some developers could have significant improvements on the base and provide much better service and features for users.

There has already been thousands of new Cryptocurrencies created following the creation of Bitcoin.

Bitcoin still remains as the most popular Cryptocurrency today(February 2018), as it is the first Cryptocurrency ever created and there had already been many participants before any other Cryptocurrencies are exited.

1

XMXM

4.9 rating based on 1,166 ratings
4.9/5 1166
2

DerivDeriv

4.9 rating based on 143 ratings
4.9/5 143
3

LQDFXLQDFX

3.5 rating based on 93 ratings
3.5/5 93
4

FBSFBS

3.6 rating based on 99 ratings
3.6/5 99
5

FXTMFXTM

3.9 rating based on 43 ratings
3.9/5 43
1

PrimeBitPrimeBit

3.9 rating based on 7,130 ratings
3.9/5 7130
2

BinanceBinance

4.3 rating based on 7,662 ratings
4.3/5 7662
3

bybitbybit

4.2 rating based on 3,323 ratings
4.2/5 3323
4

XBTFXXBTFX

1.9 rating based on 4,447 ratings
1.9/5 4447
5

WisebitcoinWisebitcoin

3.3 rating based on 4,701 ratings
3.3/5 4701