VV, I think that is funny that you are so dismissing about the A220 mtow bump, and that for you the 789-10 mtow bump would be the better thing since sliced bread
It is a little bit off topic, but since you mention it I would like to express my rationale here.787-10 case
The case of this rumored 6 tonnes MTOW increase for the 787-10 is obviously very specific for ANZ campaign. It looks like there is at least one route in their network that needs an MTOW bump to get an economically viable payload. The route could be LAX-AKL or SEA-AKL, I do not know because I do not work in an aircraft manufacturer anymore.
It is very likely the increased MTOW is absolutely needed to win the campaign against the A350-1000 or A350-900. Again I know nothing about it.
In essence, the MTOW increase is not necessarily needed by most other airlines. For instance, I am prety sure Singapore Airlines does not bother requesting the rumored higher MTOW because they already have A350-900 along with their 787-10. One will cover the other when the range is needed.
So, this MTOW increase by 6 tonnes is not a big deal
except for ANZ's sales and maybe for a very few number of exceptions in the future. As previously mentioned, the 787-10's capability already covers more than 90% of current existing widebody routes. It is of prime importance Boeing keeps the modification to the 787-10, if any, at a very minimum level.
For the remaining other routes that need more performing aircraft, ANZ can opt for A350, 777-9 or 777-8. As you probably know, ANZ still has 8 777-300ER to replace in the future. A220 case
Recently Airbus announced the increase of A220's MTOW by 5,000 lb or 2.3 tonnes, increasing its maximum range way above 3,000 nm.
The reality is that only 3% of routes currently operated by aircraft with fewer than 150 seats is above 2,000 nm. Only 1% of current routes operated by aircraft with fewer than 150 seats is above 2,500 nm.
So the MTOW increase for the A220 does not add anything to its attractiveness. On the contrary, it only shows that the aircraft has not been optimized for its current capacity
. A stretch of the A220-300 will obviously be very attractive
because its range will be around 2,500 nm and its economics will be much better than A320neo or 737 MAX 8.
Announcing an MTOW increase of 5,000 lb for the CS100 and CS300 today is only a waste of time and money unless if they want to launch the stretch next year.
And yes, I dismiss the importance of the 5,000 lb MTOW increase for the CS100 and CS300. I insist.