LCA MK-2 was sanctioned in Nov. 2009, Engine selection done by 2010, First flight was planned for 2014 and series production to begin in 2016. Then we took the plan and shat on it. GE delivered their first engine in 2015 and they deliver a couple a year.
As for GE deliveries, they have plenty of orders for the F414 till late next decade, planning delivery of next lots isn't difficult especially since they are working closely with ADA and HAL on the project since the start.
K-10 is on the drawing board till you can show me an official source that shows that it isn't or that it's further down the line, it's nothing more than a complex diagram.
EPE or Enhanced engine will be delivered to USN in 2020 with the new orders of Block 3 SHs, also to Kuwait.
https://therepublicword.blogspot.com/2018/12/us-navy-orders-f414-ge-400-engines-for.html
To say K-10 is in the same stage as the EPE is stupidity. EPE is growth version of one of the most proven & reliable engines ever made the F414. K-10 is a not existent version of an engine which is the most reliably delayed fighter engine program in Asia if not the world.
While it could be that the F414-INS6 powers the MK-1A (would be a nice surprise) but IAF and MOD need to place orders.
The 99 engine order comes with an option for 40 more. They could use these engines to power the MK-1A and order more when MWF is ready.