5th - September 2010, N/A - September 2011, 3rdR - September 2012, 5th+ - September 2013.
6th - September 2014, N/A - September 2015, 4thR - September 2016, 6th+ - September 2017.
7th - September 2018, N/A - September 2019, 5thR - September 2020, 7th+ - September 2021.
8th - September 2022, N/A - September 2023, 6thR - September 2024, 8th+ - September 2025.
9th - September 2026, N/A - September 2027, 7thR - September 2028, 9th+ - September 2029.
10th - September 2030, N/A - September 2031, 8thR - September 2032, 10th+ - September 2033.
11th - September 2034, N/A - September 2035, 9thR - September 2036, 11th+ - September 2037.
12th - September 2038, N/A - September 2039, 10thR - September 2040, 12th+ - September 2041.
13th - September 2042, N/A - September 2043, 11thR - September 2044, 13th+ - September 2045.
14th - September 2046, N/A - September 2047, 12thR - September 2048, 14th+ - September 2049.
15th - September 2050, N/A - September 2051, 13thR - September 2052, 15th+ - September 2053.
etc.
This should be how Game Freak does things. All remakes would fall on the 10th year anniversary of the originals release. It also seems like a good idea to split apart the 3rd installment from the original since both are basically the same exact game.