I have 25 transactions that have 99999999.000 coins, each at 14 days and 1 transaction with 37017040.8024 coins at 14 days.
Should I wait to see if they mint or should I combine them now?
Combine them now, asap. The larger the stack the greater the probability of staking new coins. The probability is a calculus of the number of coins times the days they've been sitting (coinday = total_coins X days_sitting) You will lose your "14 days", so this is something you'll need to weigh.
But be warned, be sure that you don't combine them all into one address since 25 x 100 million = 2.5 billion, and this will corrupt and crash your wallet.dat file.
I usually prefer to combine them into stacks of 1 billion each, or 1.5 billion each. At least that way its safe, and what they produce: "the new minted" coins are always small stacks much smaller than 2 billion (10%, 2%, etc). And every now and then, I combine all those new smaller stacks into yet more stacks of about 1 billion each... and so on.