Ability to update cache values

I would like the ability to have a value updated in a cache variable during a chain delay. I have mini games I want to make that can be run through 1 executed command. However, the delay/chain combo brings limitations. 

When a cache variable is created it remains that way and will not update if any changes happen during a delay. I would like a dynamic type of cache variable where if something changes during a delay, it will reflect it. For example:

I have two commands: !raffle and !join

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!raffle contains the following:

Begins Raffle! $[cache raffle 10 1]

$[chain] $[delay 10]

Winner is ... who...? $(cache raffleList)

------------------------------------------------------------------------

!join contains the following:

$(js (function() {

if(`$(cache raffle)` == ``){
return `There is currently no raffle.`;
}

var l = [ ];
if(`$(cache raffleList)` != ``){
l = JSON.parse(`$(cache raffleList)`);

}

for(var i = 0; i < l.length; i++ ){
if(l[i] == `$(username)`){
return `$(username), you're already in the Current Raffle!`;
}
}

l.push(`$(username)`);
l = JSON.stringify(l);
return `$[cache raffleList 12 ${l}]$(username), you're added to the Current Raffle! ${l} `;

})())

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Because $(cache raffleList) is empty in the beginning in !raffle command, it will not update at the end of the chain/delay, doesn't matter how many type !join. I would like to have this ability.