My understanding from reading on the subject is that Virginia's change over time, Latakia hits a peak in a couple/few tears and aromatics lose some (possible) bite in a year or so. Mty personal experience would add that Virginia's can be aged just about indefinitely; aged Latakia gives a lot of aromatic promise but -- once exposed to air -- can lose its flavor, and Aromatics begin to taste like cigarettes.
More of mho -- It's best to age tobacco in air-tight containers (original tins should be fine) . . . For bulk pipeweed I use the good'ol Mason jar, keep them in the box the jars came in ... and keep the box(es) in a cool, dark corner of the basement.
Mt tobacco aging secret -- buy bulk tobacco in the Spring ... get it ready for aging by removing twigs and splinters -- on the first hot, sunny day, get out the mason jars, stuff 'em with your tobacco hoard, and screw the lids down loosely ... I use a small can of tomato paste as a tamper to pack the jars ... In general, I think using smaller Mason jars is better than big Mason jars, but in practice I use what's on hand. ... Place the stuffed jars on the seat of yor car (a dark colored car if possible, windows up, doors locked) and park it in the sun ... allow to cook for the afternoon ... Then open the car, snug down the lids, put the jars back in the box they came in and hide 'em away in the basement ... Linger a while and you'll hear the "pop!" of the vacuum lids sealing. Now comes the hard part -- wait a couple/few years.