No improvements planned? Where are you looking for this information? If it's the sprint coverage tool don't trust that.. Jacksonville (where I live) has LTE all over.. Still spotty since it isn't everywhere but it's in alot more place yet Sprint's map shows absolutely nothing.
Well if your market hasn't been launched yet then spotty is all you can expect (if any coverage) for LTE. When it started for me only one section of Jacksonville had it and now it's all over in patches.. Looks like a rash on sensorly.com lol.
But yeah NV is going on in your area if you have seen 4g before so this definitely could be the cause. I have LTE in a good amount of places where I live just not at work yet but I know they are working on the tower at my work and this morning (while on company wifi) I saw the data roaming warning.. So This is probably why your seeing it more and more. I just wouldn't worry to much about it for now
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As for others.. NV might not be going on in your area but you still see this... It could just be a network hiccup or something.. Who knows because we all know Sprint isn't perfect but I can say if NV is going on this is most likely the cause since they are messing with the hardware on the towers.
Sent from my Sprint S3 using AC forums.