I don't know much about Theta coin. I gather they are partnering with Sony?
Think it will do well in the next couple of years? (price wise compared to other popular crypto)
If you want to know more about Theta you can go to the official website and you will find a lot of information that might be of use to you.
I think Theta is quite potential for the future, In the 4th quarter of this year Theta will release Metachain Mainnet 4.0. So far Theta also has a good performance in the market. So I think Theta is worth buying and making a long term investment.