Zilliqa has long (over 2 years) been under development and crypto investors and users wants instant results.
They have just recently moved to their own blockchain and has launched a new program called Zillacracy where the community gets involved in decision making.
For those particular reasons and being listed on Binance US, it had a brief bullish trend.
As it's said in the real world, "slow and steady wins the race". Other blockchain platforms (except Ethereum) may be quicker in terms of development and innovation, but most of them are centralized and full of security issues. Zilliqa, on the hand, is working towards making a robust smart contract platform that focuses on decentralization/security above all else. It's taking the same path as Ethereum in terms of development and innovation. Being one of the first (if not the first) smart contract platforms with "Sharding" it could serve as "experimental grounds" for the Ethereum blockchain. Once "Sharding" is proven to be successful on the Zilliqa blockchain, ETH devs could adopt the scalability solution for their own benefit. Considering that ZIL is being thoroughly tested over time, it could become a huge contender of ETH sometime in the future. Even if it doesn't manage to overcome ETH, it could leave its competitors (ADA, EOS, etc.) in the dust.
Time will tell us what the fate of ZIL will be according to its adoption in the mainstream world.
I think that situation about sharding Ethereum killers (Zilliqa, QuarkChain and Harmony) is pretty same. They already developed it but they have problem with adoption and decentralization. Thats why I believe that Ethereum will overtake this industry again.
That's certainly true, mate. What matters is adoption above anything else (aside from decentralization/censorship-resistance). It's no wonder why Ethereum has been so successful after all these years. Zilliqa or any other smart contract platform would need to focus on real use cases for the mainstream world in order to become a direct competitor of the ETH blockchain. But it'll be a very hard task to achieve, since Ethereum has first-mover advantage on the market just like Bitcoin. No other smart contract platform of today will be able to outmatch the original one (ETH) anytime soon. At least, Zilliqa proves to be a nice alternative to the ETH blockchain with a proven blockchain that's secure and scalable at the same time. With the current low prices per "ZIL" compared to leading smart contract platforms, I'd say it's quite a bargain.