So, this hardfork will fix the term deposit interest issue?
I have just installed 1.1.0.0 and found that 12 months term deposit still with very high interest.
Yes it will fix it but not until after the fork. Even if you load the new wallet it is going to term deposit on pre-fork code right up until the fork. We decided to do it this way because we do not want the community to experience any change in their existing term deposits that were prior to the fork if that makes sense.
Then if I see now Maturation Date 2019/02/03 (I was deposited for 12 months) that date will be decreased automaticaly after the fork? Or nothing will changed.
The fork will have no impact on maturation dates. Rather, maturation dates are a coin unlock prediction based on the timing of the blockchain. You may notice that maturation dates will change if you check them day to day and this is because this time is calculated and recalculated based on the most current data. What varies here is the blockchain timing. While it's true the code is set to move the blockchain at 2 minutes per block... the MIDAS algo comes behind that and will adjust blockchain timing dynamically based on several things such as current block chain timing, expected block chain timing, total network hash rate etc.
We did anticipate that the MIDAS algo would tend to slow the block chain timing as opposed to speeding it up and so when we did initial determinations of POS and term deposit rates we did elevate them to compensate for this. Up until such time that the network hashrate stays fairly stable we are presuming a potential 20%-25% reduction in target blockchain timing. In other words, the target timing of 2 minutes could be 2.4-2.5 minutes. As we move forward, rest assured that we are monitoring the block timing and in the future and if deemed necessary we may adjust the MIDAS algo.
Bear in mind that our emphasis is on security and protecting the blockchain from massive hashing movements. You see what can happen is some may have the horsepower to "game" the system and by this I mean they can apply and un-apply large amounts of hash quickly and thus manipulate block timing in an effort to harvest many coins quickly. This is not good because if we do not protect from it someone in the know could swoop in and harvest a bunch of blocks quickly and then exit leaving the community sitting there for a long time unable to mine any blocks at all.
It's sad that we do have to anticipate attacks and then be ready for them but it is what it is. We feel that protecting the coin and it's community from such evildoers is more critical than having a blockchain that cracks a block every 120 seconds regardless of the dangers...