I like to think that investment as separate from speculation so no I don't currently see any altcoin as an investment opportunity.
I do see altcoin as an investment opportunity but not for the new projects because we have yet to see if the team would be able to carry out what they have promise in their whitepapers while I may be willing to invest in the coins that have been existing for years because we can already see their developments and their project may already be complete and we can see the demand then if the people would use it for its actual use case or just for speculation purposes.
However, there are still new projects that are worth looking at and you will be lucky if you would be able to purchase it during ICO when the price is still cheap. Of course, you still have the option to purchase it when it is already listed in exchanges.