Look at the reward model. Investors aren't going to push in heavily until the reward starts falling, which isn't going to happen for a bit. Basically daily mining profits are about steady due to the fact that the block reward is increasing daily. More coins != more money. Investors aren't stupid.

Each coin basically can be summed up in a unit of work, not all investors look at that, but a lot of them do, which is why the coin is probably going to maintain it's downward trend while the blockreward maintains its upward trend, within reason, till the block reward stops increasing. That aside, there is no reason that this coin should make more then other coins. Mining is a pie and Ethereum is a HUGE pool of infinite hash that no other coin can support. People will spill off of Ethereum into whatever new coin comes out until it reaches equilibrium with Ethereum and then they'll go back to it. So you should definitely expect that this coins mining profits will be the same as Ethereum with enough time.

I swear to god the majority of miners are just fucking retarded and it's a shame there really isn't any entry level to mining when it comes to intelligence... With the boom of Ethereum and hatching ethbabies, there is an entirely new generation of retardanism that had been originally weeded out.